diff --git a/include/functions.h b/include/functions.h
index 324f723d9..4e2669da1 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -817,7 +817,7 @@ void Player_UpdateBottleHeld(PlayState* play, Player* player, ItemId itemId, Pla
 void Player_Untarget(Player* player);
 void func_80123DC0(Player* player);
 void func_80123E90(PlayState* play, Actor* actor);
-s32 func_80123F2C(PlayState* play, s32 ammo);
+s32 Player_SetBButtonAmmo(PlayState* play, s32 ammo);
 s32 Player_IsBurningStickInRange(PlayState* play, Vec3f* pos, f32 xzRange, f32 yRange);
 u8 Player_GetStrength(void);
 s32 Player_GetMask(PlayState* play);
diff --git a/include/macros.h b/include/macros.h
index da931fb27..f6fa1bb6e 100644
--- a/include/macros.h
+++ b/include/macros.h
@@ -21,6 +21,11 @@
 
 #define ARRAY_COUNT_2D(arr) (ARRAY_COUNT(arr) * ARRAY_COUNT(arr[0]))
 
+#define KSEG0 0x80000000 // 0x80000000 - 0x9FFFFFFF  Physical memory, cached, unmapped
+
+#define RDRAM_CACHED KSEG0
+
+#define PHYSICAL_TO_VIRTUAL(addr) ((uintptr_t)(addr) + RDRAM_CACHED)
 #define SEGMENTED_TO_K0(addr) (void*)((gSegments[SEGMENT_NUMBER(addr)] + K0BASE) + SEGMENT_OFFSET(addr))
 
 #define GET_ACTIVE_CAM(play) ((play)->cameraPtrs[(play)->activeCamId])
diff --git a/include/regs.h b/include/regs.h
index 7dfd8fd2e..f696b2e91 100644
--- a/include/regs.h
+++ b/include/regs.h
@@ -136,7 +136,7 @@ extern RegEditor* gRegEditor;
 #define R_A_BTN_COLOR(i)                    XREG(22 + i)
 #define R_A_BTN_Y_OFFSET                    XREG(31)
 #define R_MAGIC_CONSUME_TIMER_GIANTS_MASK   XREG(41)
-#define R_THREE_DAY_CLOCK_Y_POS             XREG(43)
+#define R_THREE_DAY_CLOCK_Y_POS             XREG(43) // TODO: Test
 #define R_THREE_DAY_CLOCK_SUN_MOON_CUTOFF   XREG(44)
 #define R_THREE_DAY_CLOCK_HOUR_DIGIT_CUTOFF XREG(45)
 #define R_PAUSE_DBG_MAP_CLOUD_ON            XREG(50)
diff --git a/include/z64.h b/include/z64.h
index fe15012e8..0ae81bfa5 100644
--- a/include/z64.h
+++ b/include/z64.h
@@ -167,6 +167,24 @@ typedef enum {
     /* 0x02 */ KALEID_OVL_MAX
 } KaleidoMgrOverlayType;
 
+typedef struct {
+    /* 0x00 */ TexturePtr timg;
+    /* 0x04 */ TexturePtr tlut;
+    /* 0x08 */ u16 width;
+    /* 0x0A */ u16 height;
+    /* 0x0C */ u8 fmt;
+    /* 0x0D */ u8 siz;
+    /* 0x0E */ u16 tt;
+    /* 0x10 */ u16 unk_10;
+    /* 0x14 */ f32 x;
+    /* 0x18 */ f32 y;
+    /* 0x1C */ f32 xScale;
+    /* 0x20 */ f32 yScale;
+    /* 0x24 */ u32 flags;
+} PreRenderParams; // size = 0x28
+
+struct PlayState;
+
 typedef struct {
     /* 0x0 */ u8   seqId;
     /* 0x1 */ u8   ambienceId;
@@ -242,7 +260,7 @@ typedef struct PlayState {
     /* 0x18876 */ s16 worldCoverAlpha;
     /* 0x18878 */ s16 bgCoverAlpha;
     /* 0x1887A */ u16 nextEntrance;
-    /* 0x1887C */ s8 unk_1887C; // shootingGalleryStatus?
+    /* 0x1887C */ s8 bButtonAmmoPlusOne;
     /* 0x1887D */ s8 unk_1887D;
     /* 0x1887E */ s8 unk_1887E;
     /* 0x1887F */ u8 transitionType; // fadeTransition
diff --git a/include/z64interface.h b/include/z64interface.h
index c83630cbf..d768254e2 100644
--- a/include/z64interface.h
+++ b/include/z64interface.h
@@ -64,7 +64,10 @@ typedef enum {
     /* 0x27 */ DO_ACTION_POUND,
     /* 0x28 */ DO_ACTION_HOOK,
     /* 0x29 */ DO_ACTION_SHOOT,
-    /* 0x2A */ DO_ACTION_MAX
+    /* 0x2A */ DO_ACTION_MAX,
+    /* 0x2A */ TATL_STATE_2A = DO_ACTION_MAX,
+    /* 0x2B */ TATL_STATE_2B,
+    /* 0x2C */ TATL_STATE_2C
 } DoAction;
 
 typedef enum {
@@ -138,10 +141,10 @@ typedef struct {
     /* 0x1FC */ OSMesg loadMsg;
     /* 0x200 */ Viewport viewport;
     /* 0x210 */ s16 aButtonState;
-    /* 0x212 */ u16 unk_212;
+    /* 0x212 */ u16 aButtonHorseDoAction; // TODO: Confirm. Only seems to be used for Epona and "DO_ACTION_FASTER". Also Kaleido?
     /* 0x214 */ u16 aButtonDoAction;
     /* 0x218 */ f32 aButtonRoll;
-    /* 0x21C */ s16 unk_21C;
+    /* 0x21C */ s16 bButtonDoActionActive;
     /* 0x21E */ s16 bButtonDoAction;
     /* 0x220 */ s16 tatlCalling;
     /* 0x222 */ s16 unk_222;
@@ -243,16 +246,16 @@ u8 Item_CheckObtainability(u8 item);
 void Inventory_DeleteItem(s16 item, s16 slot);
 void Inventory_UnequipItem(s16 item);
 s32 Inventory_ReplaceItem(struct PlayState* play, u8 oldItem, u8 newItem);
-void Inventory_UpdateDeitySwordEquip(struct PlayState* play);
+void Inventory_UpdateDeitySwordEquip(struct PlayState* play) ;
 s32 Inventory_HasEmptyBottle(void);
 s32 Inventory_HasItemInBottle(u8 item);
 void Inventory_UpdateBottleItem(struct PlayState* play, u8 item, u8 btn);
 s32 Inventory_ConsumeFairy(struct PlayState* play);
 void Inventory_UpdateItem(struct PlayState* play, s16 slot, s16 item);
-void func_8011552C(struct PlayState* play, u16 arg1);
-void func_801155B4(struct PlayState* play, s16 arg1);
-void func_80115764(struct PlayState* play, UNK_TYPE arg1);
-void func_80115844(struct PlayState* play, s16 doAction);
+void Interface_SetAButtonDoAction(struct PlayState* play, u16 aButtonDoAction);
+void Interface_SetBButtonDoAction(struct PlayState* play, s16 bButtonDoAction);
+void Interface_SetTatlCall(struct PlayState* play, u16 tatlCallState);
+void Interface_LoadBButtonDoActionLabel(struct PlayState* play, s16 bButtonDoAction);
 s32 Health_ChangeBy(struct PlayState* play, s16 healthChange);
 void Health_GiveHearts(s16 hearts);
 void Rupees_ChangeBy(s16 rupeeChange);
diff --git a/include/z64save.h b/include/z64save.h
index e1c752906..b0766b415 100644
--- a/include/z64save.h
+++ b/include/z64save.h
@@ -6,6 +6,7 @@
 #include "z64item.h"
 #include "z64math.h"
 #include "unk.h"
+#include "z64item.h"
 
 struct GameState;
 struct PlayState;
diff --git a/src/code/PreRender.c b/src/code/PreRender.c
index d058fded3..e33fbd30e 100644
--- a/src/code/PreRender.c
+++ b/src/code/PreRender.c
@@ -104,8 +104,8 @@ void func_8016FF90(PreRender* this, Gfx** gfxp, void* buf, void* bufSave, s32 en
 
     gDPSetScissor(gfx++, G_SC_NON_INTERLACE, 0, 0, this->width, this->height);
 
-    Prerender_DrawBackground2D(&gfx, buf, 0, this->width, this->height, G_IM_FMT_RGBA, G_IM_SIZ_16b, G_TT_NONE, 0, 0.0f,
-                               0.0f, 1.0f, 1.0f, BG2D_FLAGS_1 | BG2D_FLAGS_2 | BG2D_FLAGS_LOAD_S2DEX2);
+    Prerender_DrawBackground2D(&gfx, buf, NULL, this->width, this->height, G_IM_FMT_RGBA, G_IM_SIZ_16b, G_TT_NONE, 0,
+                               0.0f, 0.0f, 1.0f, 1.0f, 0xB);
     gDPPipeSync(gfx++);
     gDPSetColorImage(gfx++, G_IM_FMT_RGBA, G_IM_SIZ_16b, this->width, this->fbuf);
 
diff --git a/src/code/code_8012EC80.c b/src/code/code_8012EC80.c
index 768c0b8dc..8d3d2dcf9 100644
--- a/src/code/code_8012EC80.c
+++ b/src/code/code_8012EC80.c
@@ -478,8 +478,8 @@ s32 Inventory_GetBtnBItem(PlayState* play) {
     } else if (gSaveContext.bButtonStatus == BTN_DISABLED) {
         return ITEM_NONE;
     } else if (CUR_FORM_EQUIP(EQUIP_SLOT_B) == ITEM_NONE) {
-        if (play->interfaceCtx.unk_21C != 0) {
-            if (play->interfaceCtx.bButtonDoAction != 0) {
+        if (play->interfaceCtx.bButtonDoActionActive) {
+            if (play->interfaceCtx.bButtonDoAction != DO_ACTION_ATTACK) {
                 return play->interfaceCtx.bButtonDoAction;
             }
         }
diff --git a/src/code/title_setup.c b/src/code/title_setup.c
index e8aa68c44..8330df574 100644
--- a/src/code/title_setup.c
+++ b/src/code/title_setup.c
@@ -3,9 +3,9 @@
 
 void Setup_SetRegs(void) {
     XREG(2) = 0;
-    XREG(10) = 0x1A;
-    XREG(11) = 0x14;
-    XREG(12) = 0xE;
+    XREG(10) = 26;
+    XREG(11) = 20;
+    XREG(12) = 14;
     XREG(13) = 0;
     R_A_BTN_Y_OFFSET = 0;
     R_MAGIC_CONSUME_TIMER_GIANTS_MASK = 80;
diff --git a/src/code/z_kaleido_setup.c b/src/code/z_kaleido_setup.c
index 61f8d2989..dcaaa9551 100644
--- a/src/code/z_kaleido_setup.c
+++ b/src/code/z_kaleido_setup.c
@@ -93,8 +93,8 @@ void KaleidoSetup_Update(PlayState* play) {
         (play->gameOverCtx.state == GAMEOVER_INACTIVE)) {
         if ((play->transitionTrigger == TRANS_TRIGGER_OFF) && (play->transitionMode == TRANS_MODE_OFF)) {
             if ((gSaveContext.save.cutsceneIndex < 0xFFF0) && (gSaveContext.nextCutsceneIndex < 0xFFF0)) {
-                if (!Play_InCsMode(play) || ((msgCtx->msgMode != MSGMODE_NONE) && (msgCtx->currentTextId == 0xFF))) {
-                    if ((play->unk_1887C < 2) && (gSaveContext.magicState != MAGIC_STATE_STEP_CAPACITY) &&
+                if (!Play_InCsMode(play) || ((msgCtx->msgMode != 0) && (msgCtx->currentTextId == 0xFF))) {
+                    if ((play->bButtonAmmoPlusOne < 2) && (gSaveContext.magicState != MAGIC_STATE_STEP_CAPACITY) &&
                         (gSaveContext.magicState != MAGIC_STATE_FILL)) {
                         if (!CHECK_EVENTINF(EVENTINF_17) && !(player->stateFlags1 & PLAYER_STATE1_20)) {
                             if (!(play->actorCtx.flags & ACTORCTX_FLAG_1) &&
diff --git a/src/code/z_message.c b/src/code/z_message.c
index 06ac6c23d..ff16d258a 100644
--- a/src/code/z_message.c
+++ b/src/code/z_message.c
@@ -1245,7 +1245,7 @@ void Message_DrawTextDefault(PlayState* play, Gfx** gfxP) {
                     msgCtx->stateTimer = msgCtx->decodedBuffer.wchar[++i];
                     Font_LoadMessageBoxEndIcon(&play->msgCtx.font, 1);
                     if (play->csCtx.state == CS_STATE_IDLE) {
-                        func_8011552C(play, DO_ACTION_RETURN);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_RETURN);
                     }
                 }
                 *gfxP = gfx;
@@ -1258,7 +1258,7 @@ void Message_DrawTextDefault(PlayState* play, Gfx** gfxP) {
                     msgCtx->stateTimer = msgCtx->decodedBuffer.wchar[++i];
                     Font_LoadMessageBoxEndIcon(&play->msgCtx.font, 1);
                     if (play->csCtx.state == CS_STATE_IDLE) {
-                        func_8011552C(play, DO_ACTION_RETURN);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_RETURN);
                     }
                 }
                 *gfxP = gfx;
@@ -1416,7 +1416,7 @@ void Message_DrawTextDefault(PlayState* play, Gfx** gfxP) {
                             Font_LoadMessageBoxEndIcon(font, 0);
                         }
                         if (play->csCtx.state == CS_STATE_IDLE) {
-                            func_8011552C(play, DO_ACTION_RETURN);
+                            Interface_SetAButtonDoAction(play, DO_ACTION_RETURN);
                         }
                     } else {
                         Audio_PlaySfx(NA_SE_NONE);
@@ -3106,7 +3106,7 @@ void Message_OpenText(PlayState* play, u16 textId) {
     }
 
     if (textId == 0xFF) {
-        func_80115844(play, DO_ACTION_STOP);
+        Interface_LoadBButtonDoActionLabel(play, DO_ACTION_STOP);
         play->msgCtx.hudVisibility = gSaveContext.hudVisibility;
         Interface_SetHudVisibility(HUD_VISIBILITY_A_B_C);
         gSaveContext.save.unk_06 = 20;
@@ -3337,9 +3337,9 @@ void Message_ContinueTextbox(PlayState* play, u16 textId) {
 
     if (interfaceCtx->unk_222 == 0) {
         if (textId != 0x1B93) {
-            func_8011552C(play, DO_ACTION_NEXT);
+            Interface_SetAButtonDoAction(play, DO_ACTION_NEXT);
         } else if (textId != 0xF8) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         }
     }
     msgCtx->textboxColorAlphaCurrent = msgCtx->textboxColorAlphaTarget;
@@ -3566,7 +3566,7 @@ void Message_DisplayOcarinaStaffImpl(PlayState* play, u16 ocarinaAction) {
     msgCtx->textboxColorAlphaCurrent = msgCtx->textboxColorAlphaTarget;
 
     if (!noStop) {
-        func_80115844(play, DO_ACTION_STOP);
+        Interface_LoadBButtonDoActionLabel(play, DO_ACTION_STOP);
         noStop = gSaveContext.hudVisibility;
         Interface_SetHudVisibility(HUD_VISIBILITY_B_ALT);
         gSaveContext.hudVisibility = noStop;
@@ -5405,9 +5405,9 @@ void Message_Update(PlayState* play) {
             msgCtx->msgMode = MSGMODE_TEXT_NEXT_MSG;
             if (!pauseCtx->itemDescriptionOn) {
                 if (msgCtx->currentTextId == 0xFF) {
-                    func_8011552C(play, DO_ACTION_STOP);
+                    Interface_SetAButtonDoAction(play, DO_ACTION_STOP);
                 } else if (msgCtx->currentTextId != 0xF8) {
-                    func_8011552C(play, DO_ACTION_NEXT);
+                    Interface_SetAButtonDoAction(play, DO_ACTION_NEXT);
                 }
             }
             break;
@@ -5698,7 +5698,7 @@ void Message_Update(PlayState* play) {
                             Message_CloseTextbox(play);
                             play->msgCtx.ocarinaMode = OCARINA_MODE_END;
                             gSaveContext.prevHudVisibility = HUD_VISIBILITY_A_B;
-                            func_80115844(play, DO_ACTION_STOP);
+                            Interface_LoadBButtonDoActionLabel(play, DO_ACTION_STOP);
                             GameState_SetFramerateDivisor(&play->state, 2);
                             if (ShrinkWindow_Letterbox_GetSizeTarget() != 0) {
                                 ShrinkWindow_Letterbox_SetSizeTarget(0);
@@ -5759,7 +5759,7 @@ void Message_Update(PlayState* play) {
             XREG(31) = 0;
 
             if (pauseCtx->itemDescriptionOn) {
-                func_8011552C(play, DO_ACTION_INFO);
+                Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
                 pauseCtx->itemDescriptionOn = false;
             }
 
diff --git a/src/code/z_message_nes.c b/src/code/z_message_nes.c
index 2b6afbb68..069a97d45 100644
--- a/src/code/z_message_nes.c
+++ b/src/code/z_message_nes.c
@@ -590,7 +590,7 @@ void Message_DrawTextNES(PlayState* play, Gfx** gfxP, u16 textDrawPos) {
                     msgCtx->stateTimer = stateTimerHi;
                     Font_LoadMessageBoxEndIcon(font, 1);
                     if (play->csCtx.state == CS_STATE_IDLE) {
-                        func_8011552C(play, DO_ACTION_RETURN);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_RETURN);
                     }
                 }
                 *gfxP = gfx;
@@ -605,7 +605,7 @@ void Message_DrawTextNES(PlayState* play, Gfx** gfxP, u16 textDrawPos) {
                     msgCtx->stateTimer = stateTimerHi;
                     Font_LoadMessageBoxEndIcon(font, 1);
                     if (play->csCtx.state == CS_STATE_IDLE) {
-                        func_8011552C(play, DO_ACTION_RETURN);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_RETURN);
                     }
                 }
                 *gfxP = gfx;
@@ -785,7 +785,7 @@ void Message_DrawTextNES(PlayState* play, Gfx** gfxP, u16 textDrawPos) {
                             Font_LoadMessageBoxEndIcon(font, 0);
                         }
                         if (play->csCtx.state == CS_STATE_IDLE) {
-                            func_8011552C(play, DO_ACTION_RETURN);
+                            Interface_SetAButtonDoAction(play, DO_ACTION_RETURN);
                         }
                     } else {
                         Audio_PlaySfx(NA_SE_NONE);
diff --git a/src/code/z_parameter.c b/src/code/z_parameter.c
index 1ad8135a5..4da2e4d7a 100644
--- a/src/code/z_parameter.c
+++ b/src/code/z_parameter.c
@@ -171,6 +171,7 @@ s16 D_801BF9BC[] = {
 s16 D_801BF9C4[] = { 0x9E, 0x9B };
 s16 D_801BF9C8[] = { 0x17, 0x16 };
 f32 D_801BF9CC[] = { -380.0f, -350.0f };
+
 s16 D_801BF9D4[] = {
     0xA7,  // EQUIP_SLOT_B
     0xE3,  // EQUIP_SLOT_C_LEFT
@@ -1317,7 +1318,7 @@ void Interface_UpdateHudAlphas(PlayState* play, s16 dimmingAlpha) {
             }
 
             if ((gSaveContext.buttonStatus[EQUIP_SLOT_B] == BTN_DISABLED) ||
-                (gSaveContext.bButtonStatus == ITEM_NONE)) {
+                (gSaveContext.bButtonStatus == BTN_DISABLED)) {
                 if (interfaceCtx->bAlpha != 70) {
                     interfaceCtx->bAlpha = 70;
                 }
@@ -2185,7 +2186,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
     if (gSaveContext.save.cutsceneIndex < 0xFFF0) {
         gSaveContext.hudVisibilityForceButtonAlphasByStatus = false;
         if ((player->stateFlags1 & PLAYER_STATE1_800000) || CHECK_WEEKEVENTREG(WEEKEVENTREG_08_01) ||
-            (!CHECK_EVENTINF(EVENTINF_41) && (play->unk_1887C >= 2))) {
+            (!(CHECK_EVENTINF(EVENTINF_41)) && (play->bButtonAmmoPlusOne >= 2))) {
             // Riding Epona OR Honey & Darling minigame OR Horseback balloon minigame OR related to swamp boat
             // (non-minigame?)
             if ((player->stateFlags1 & PLAYER_STATE1_800000) && (player->currentMask == PLAYER_MASK_BLAST) &&
@@ -2237,7 +2238,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
                         } else {
                             BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) = ITEM_BOW;
 
-                            if (play->unk_1887C >= 2) {
+                            if (play->bButtonAmmoPlusOne >= 2) {
                                 Interface_LoadItemIconImpl(play, EQUIP_SLOT_B);
                             } else if (gSaveContext.save.saveInfo.inventory.items[SLOT_BOW] == ITEM_NONE) {
                                 BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) = ITEM_NONE;
@@ -2263,7 +2264,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
                     } else if (!CHECK_WEEKEVENTREG(WEEKEVENTREG_82_08) &&
                                (gSaveContext.minigameStatus == MINIGAME_STATUS_ACTIVE)) {
                         Interface_SetHudVisibility(HUD_VISIBILITY_B);
-                    } else if (play->unk_1887C >= 2) {
+                    } else if (play->bButtonAmmoPlusOne >= 2) {
                         Interface_SetHudVisibility(HUD_VISIBILITY_B);
                     } else if (CHECK_WEEKEVENTREG(WEEKEVENTREG_08_01)) {
                         gSaveContext.buttonStatus[EQUIP_SLOT_C_LEFT] = BTN_DISABLED;
@@ -2294,7 +2295,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
                     BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) = ITEM_BOW;
                 }
 
-                if (play->unk_1887C >= 2) {
+                if (play->bButtonAmmoPlusOne >= 2) {
                     Interface_LoadItemIconImpl(play, EQUIP_SLOT_B);
                 } else if (gSaveContext.save.saveInfo.inventory.items[SLOT_BOW] == ITEM_NONE) {
                     BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) = ITEM_NONE;
@@ -2320,7 +2321,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
                     Interface_SetHudVisibility(HUD_VISIBILITY_A_B_MINIMAP);
                 } else if (gSaveContext.minigameStatus == MINIGAME_STATUS_ACTIVE) {
                     Interface_SetHudVisibility(HUD_VISIBILITY_B);
-                } else if (play->unk_1887C >= 2) {
+                } else if (play->bButtonAmmoPlusOne >= 2) {
                     Interface_SetHudVisibility(HUD_VISIBILITY_B);
                 } else if (CHECK_WEEKEVENTREG(WEEKEVENTREG_08_01)) {
                     gSaveContext.buttonStatus[EQUIP_SLOT_C_LEFT] = BTN_DISABLED;
@@ -2364,7 +2365,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
                 Message_CloseTextbox(play);
                 if (play->msgCtx.choiceIndex != 0) {
                     Audio_PlaySfx_MessageCancel();
-                    func_80115844(play, DO_ACTION_STOP);
+                    Interface_LoadBButtonDoActionLabel(play, DO_ACTION_STOP);
                     Interface_SetHudVisibility(HUD_VISIBILITY_A_B);
                     sPictoState = PICTO_BOX_STATE_LENS;
                     REMOVE_QUEST_ITEM(QUEST_PICTOGRAPH);
@@ -2403,7 +2404,7 @@ void Interface_UpdateButtonsPart1(PlayState* play) {
         } else if (play->actorCtx.flags & ACTORCTX_FLAG_PICTO_BOX_ON) {
             // Related to pictograph
             if (!CHECK_QUEST_ITEM(QUEST_PICTOGRAPH)) {
-                func_80115844(play, DO_ACTION_STOP);
+                Interface_LoadBButtonDoActionLabel(play, DO_ACTION_STOP);
                 Interface_SetHudVisibility(HUD_VISIBILITY_A_B);
                 sPictoState = PICTO_BOX_STATE_LENS;
             } else {
@@ -2469,9 +2470,16 @@ void Interface_InitMinigame(PlayState* play) {
     interfaceCtx->minigameAmmo = 20;
 }
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/Interface_LoadItemIconImpl.s")
+void Interface_LoadItemIconImpl(PlayState* play, u8 btn) {
+    InterfaceContext* interfaceCtx = &play->interfaceCtx;
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/Interface_LoadItemIcon.s")
+    CmpDma_LoadFile(SEGMENT_ROM_START(icon_item_static_yar), GET_CUR_FORM_BTN_ITEM(btn),
+                    &interfaceCtx->iconItemSegment[(u32)btn * 0x1000], 0x1000);
+}
+
+void Interface_LoadItemIcon(PlayState* play, u8 btn) {
+    Interface_LoadItemIconImpl(play, btn);
+}
 
 /**
  * @param play PlayState
@@ -3145,7 +3153,7 @@ void Inventory_UpdateDeitySwordEquip(PlayState* play) {
     u8 btn;
 
     if (CUR_FORM == PLAYER_FORM_FIERCE_DEITY) {
-        interfaceCtx->unk_21C = 0;
+        interfaceCtx->bButtonDoActionActive = false;
         interfaceCtx->bButtonDoAction = 0;
 
         // Is simply checking if (GET_PLAYER_FORM == PLAYER_FORM_FIERCE_DEITY)
@@ -3244,23 +3252,113 @@ void Inventory_UpdateItem(PlayState* play, s16 slot, s16 item) {
     }
 }
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_801153C8.s")
+void Interface_MemSetZeroed(u32* buf, s32 count) {
+    s32 i;
 
-TexturePtr sDoActionTextures[] = {
-    gDoActionAttackENGTex,
-    gDoActionCheckENGTex,
-};
+    for (i = 0; i != count; i++) {
+        buf[i] = 0;
+    }
+}
 
-void func_80115428(InterfaceContext* interfaceCtx, u16 doAction, s16 loadOffset);
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_80115428.s")
+void Interface_LoadAButtonDoActionLabel(InterfaceContext* interfaceCtx, u16 action, s16 loadOffset) {
+    static TexturePtr sDoActionTextures[] = {
+        gDoActionAttackENGTex,
+        gDoActionCheckENGTex,
+    };
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_8011552C.s")
+    if (action >= DO_ACTION_MAX) {
+        action = DO_ACTION_NONE;
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_801155B4.s")
+    if (action != DO_ACTION_NONE) {
+        osCreateMesgQueue(&interfaceCtx->loadQueue, &interfaceCtx->loadMsg, 1);
+        DmaMgr_SendRequestImpl(&interfaceCtx->dmaRequest,
+                               (u32)interfaceCtx->doActionSegment + (loadOffset * DO_ACTION_TEX_SIZE),
+                               (u32)SEGMENT_ROM_START(do_action_static) + (action * DO_ACTION_TEX_SIZE),
+                               DO_ACTION_TEX_SIZE, 0, &interfaceCtx->loadQueue, 0);
+        osRecvMesg(&interfaceCtx->loadQueue, NULL, OS_MESG_BLOCK);
+    } else {
+        gSegments[0x09] = PHYSICAL_TO_VIRTUAL(interfaceCtx->doActionSegment);
+        Interface_MemSetZeroed(Lib_SegmentedToVirtual(sDoActionTextures[loadOffset]), 0x60);
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_80115764.s")
+void Interface_SetAButtonDoAction(PlayState* play, u16 aButtonDoAction) {
+    InterfaceContext* interfaceCtx = &play->interfaceCtx;
+    PauseContext* pauseCtx = &play->pauseCtx;
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_80115844.s")
+    if (interfaceCtx->aButtonDoAction != aButtonDoAction) {
+        interfaceCtx->aButtonDoAction = aButtonDoAction;
+        interfaceCtx->aButtonState = A_BTN_STATE_1;
+        interfaceCtx->aButtonRoll = 0.0f;
+        Interface_LoadAButtonDoActionLabel(interfaceCtx, aButtonDoAction, 1);
+        if (pauseCtx->state != PAUSE_STATE_OFF) {
+            interfaceCtx->aButtonState = A_BTN_STATE_3;
+        }
+    }
+}
+
+void Interface_SetBButtonDoAction(PlayState* play, s16 bButtonDoAction) {
+    InterfaceContext* interfaceCtx = &play->interfaceCtx;
+
+    if (((BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) >= ITEM_SWORD_KOKIRI) &&
+         (BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) <= ITEM_SWORD_GILDED)) ||
+        (BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) == ITEM_NONE) ||
+        (BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) == ITEM_DEKU_NUT)) {
+        if ((CUR_FORM == PLAYER_FORM_DEKU) && !gSaveContext.save.saveInfo.playerData.isMagicAcquired) {
+            interfaceCtx->bButtonDoAction = 0xFD;
+        } else {
+            interfaceCtx->bButtonDoAction = bButtonDoAction;
+            if (interfaceCtx->bButtonDoAction != DO_ACTION_NONE) {
+                osCreateMesgQueue(&interfaceCtx->loadQueue, &interfaceCtx->loadMsg, 1);
+                DmaMgr_SendRequestImpl(&interfaceCtx->dmaRequest, interfaceCtx->doActionSegment + 0x600,
+                                       (bButtonDoAction * 0x180) + SEGMENT_ROM_START(do_action_static), 0x180, 0,
+                                       &interfaceCtx->loadQueue, NULL);
+                osRecvMesg(&interfaceCtx->loadQueue, NULL, OS_MESG_BLOCK);
+            }
+
+            interfaceCtx->bButtonDoActionActive = true;
+        }
+    } else {
+        interfaceCtx->bButtonDoActionActive = false;
+        interfaceCtx->bButtonDoAction = 0;
+    }
+}
+
+void Interface_SetTatlCall(PlayState* play, u16 tatlCallState) {
+    InterfaceContext* interfaceCtx = &play->interfaceCtx;
+
+    if (((tatlCallState == TATL_STATE_2A) || (tatlCallState == TATL_STATE_2B)) && !interfaceCtx->tatlCalling &&
+        (play->csCtx.state == CS_STATE_IDLE)) {
+        if (tatlCallState == TATL_STATE_2B) {
+            Audio_PlaySfx(NA_SE_VO_NAVY_CALL);
+        }
+        if (tatlCallState == TATL_STATE_2A) {
+            Audio_PlaySfx_AtPosWithReverb(&gSfxDefaultPos, NA_SE_VO_NA_HELLO_2, 0x20);
+        }
+        interfaceCtx->tatlCalling = true;
+        sCUpInvisible = 0;
+        sCUpTimer = 10;
+    } else if (tatlCallState == TATL_STATE_2C) {
+        if (interfaceCtx->tatlCalling) {
+            interfaceCtx->tatlCalling = false;
+        }
+    }
+}
+
+void Interface_LoadBButtonDoActionLabel(PlayState* play, s16 bButtonDoAction) {
+    InterfaceContext* interfaceCtx = &play->interfaceCtx;
+
+    interfaceCtx->unk_224 = bButtonDoAction;
+
+    osCreateMesgQueue(&play->interfaceCtx.loadQueue, &play->interfaceCtx.loadMsg, 1);
+    DmaMgr_SendRequestImpl(&interfaceCtx->dmaRequest, interfaceCtx->doActionSegment + 0x480,
+                           (bButtonDoAction * 0x180) + SEGMENT_ROM_START(do_action_static), 0x180, 0,
+                           &interfaceCtx->loadQueue, NULL);
+    osRecvMesg(&interfaceCtx->loadQueue, NULL, OS_MESG_BLOCK);
+
+    interfaceCtx->unk_222 = 1;
+}
 
 /**
  * @return false if player is out of health
@@ -3701,8 +3799,8 @@ void Magic_Update(PlayState* play) {
             gSaveContext.magicState = MAGIC_STATE_CONSUME_GORON_ZORA;
             // fallthrough
         case MAGIC_STATE_CONSUME_GORON_ZORA:
-            if ((play->pauseCtx.state == PAUSE_STATE_OFF) && (play->pauseCtx.debugEditor == 0) &&
-                (msgCtx->msgMode == MSGMODE_NONE) && (play->gameOverCtx.state == GAMEOVER_INACTIVE) &&
+            if ((play->pauseCtx.state == PAUSE_STATE_OFF) && (play->pauseCtx.debugEditor == DEBUG_EDITOR_NONE) &&
+                (msgCtx->msgMode == 0) && (play->gameOverCtx.state == GAMEOVER_INACTIVE) &&
                 (play->transitionTrigger == TRANS_TRIGGER_OFF) && (play->transitionMode == TRANS_MODE_OFF)) {
                 if (!Play_InCsMode(play)) {
                     interfaceCtx->magicConsumptionTimer--;
@@ -4033,8 +4131,8 @@ void Interface_DrawAmmoCount(PlayState* play, s16 button, s16 alpha) {
 
         if ((button == EQUIP_SLOT_B) && (gSaveContext.minigameStatus == MINIGAME_STATUS_ACTIVE)) {
             ammo = play->interfaceCtx.minigameAmmo;
-        } else if ((button == EQUIP_SLOT_B) && (play->unk_1887C > 1)) {
-            ammo = play->unk_1887C - 1;
+        } else if ((button == EQUIP_SLOT_B) && (play->bButtonAmmoPlusOne > 1)) {
+            ammo = play->bButtonAmmoPlusOne - 1;
         } else if (((i == ITEM_BOW) && (AMMO(i) == CUR_CAPACITY(UPG_QUIVER))) ||
                    ((i == ITEM_BOMB) && (AMMO(i) == CUR_CAPACITY(UPG_BOMB_BAG))) ||
                    ((i == ITEM_DEKU_STICK) && (AMMO(i) == CUR_CAPACITY(UPG_DEKU_STICKS))) ||
@@ -4086,8 +4184,8 @@ void Interface_DrawBButtonIcons(PlayState* play) {
 
             Interface_DrawAmmoCount(play, EQUIP_SLOT_B, interfaceCtx->bAlpha);
         }
-    } else if ((!interfaceCtx->unk_21C && (interfaceCtx->unk_222 == 0)) ||
-               ((interfaceCtx->unk_21C &&
+    } else if ((!interfaceCtx->bButtonDoActionActive && (interfaceCtx->unk_222 == 0)) ||
+               ((interfaceCtx->bButtonDoActionActive &&
                  ((BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) < ITEM_SWORD_KOKIRI) ||
                   (BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) > ITEM_SWORD_GILDED)) &&
                  BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) != ITEM_NONE) &&
@@ -4096,7 +4194,7 @@ void Interface_DrawBButtonIcons(PlayState* play) {
             if (BUTTON_ITEM_EQUIP(CUR_FORM, EQUIP_SLOT_B) != ITEM_NONE) {
                 Interface_DrawItemIconTexture(play, interfaceCtx->iconItemSegment, EQUIP_SLOT_B);
                 if ((player->stateFlags1 & PLAYER_STATE1_800000) || CHECK_WEEKEVENTREG(WEEKEVENTREG_08_01) ||
-                    (play->unk_1887C >= 2)) {
+                    (play->bButtonAmmoPlusOne >= 2)) {
                     gDPPipeSync(OVERLAY_DISP++);
                     gDPSetCombineLERP(OVERLAY_DISP++, PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE,
                                       0, PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0);
@@ -4105,8 +4203,8 @@ void Interface_DrawBButtonIcons(PlayState* play) {
                         (play->sceneId != SCENE_BOWLING) &&
                         ((gSaveContext.minigameStatus != MINIGAME_STATUS_ACTIVE) ||
                          (gSaveContext.save.entrance != ENTRANCE(ROMANI_RANCH, 0))) &&
-                        ((gSaveContext.minigameStatus != MINIGAME_STATUS_ACTIVE) || !CHECK_EVENTINF(EVENTINF_35)) &&
-                        (!CHECK_WEEKEVENTREG(WEEKEVENTREG_31_80) || (play->unk_1887C != 100))) {
+                        ((gSaveContext.minigameStatus != MINIGAME_STATUS_ACTIVE) || !(CHECK_EVENTINF(EVENTINF_35))) &&
+                        (!CHECK_WEEKEVENTREG(WEEKEVENTREG_31_80) || (play->bButtonAmmoPlusOne != 100))) {
                         Interface_DrawAmmoCount(play, EQUIP_SLOT_B, interfaceCtx->bAlpha);
                     }
                 }
@@ -4263,9 +4361,9 @@ void Interface_DrawAButton(PlayState* play) {
     CLOSE_DISPS(play->state.gfxCtx);
 }
 
-static s16 sMagicArrowEffectsR[] = { 255, 100, 255 };
-static s16 sMagicArrowEffectsG[] = { 0, 100, 255 };
-static s16 sMagicArrowEffectsB[] = { 0, 255, 100 };
+static s16 sMagicArrowEffectsR[] = { 255, 100, 255 }; // magicArrowEffectsR
+static s16 sMagicArrowEffectsG[] = { 0, 100, 255 };   // magicArrowEffectsG
+static s16 sMagicArrowEffectsB[] = { 0, 255, 100 };   // magicArrowEffectsB
 
 void Interface_DrawPauseMenuEquippingIcons(PlayState* play) {
     InterfaceContext* interfaceCtx = &play->interfaceCtx;
@@ -5571,9 +5669,9 @@ void Interface_DrawTimers(PlayState* play) {
                         if (interfaceCtx->magicAlpha != 255) {
                             gSaveContext.timerY[sTimerId] = 22;
                         } else if (gSaveContext.save.saveInfo.playerData.healthCapacity > 0xA0) {
-                            gSaveContext.timerY[sTimerId] = 54;
+                            gSaveContext.timerY[sTimerId] = 54; // two rows of hearts
                         } else {
-                            gSaveContext.timerY[sTimerId] = 46;
+                            gSaveContext.timerY[sTimerId] = 46; // one row of hearts
                         }
 
                         if ((interfaceCtx->minigameState == MINIGAME_STATE_COUNTDOWN_GO) ||
@@ -5629,9 +5727,9 @@ void Interface_DrawTimers(PlayState* play) {
                         } else {
                             gSaveContext.timerX[sTimerId] = 26;
                             if (gSaveContext.save.saveInfo.playerData.healthCapacity > 0xA0) {
-                                gSaveContext.timerY[sTimerId] = 54;
+                                gSaveContext.timerY[sTimerId] = 54; // two rows of hearts
                             } else {
-                                gSaveContext.timerY[sTimerId] = 46;
+                                gSaveContext.timerY[sTimerId] = 46; // one row of hearts
                             }
                         }
 
@@ -6025,7 +6123,7 @@ void Interface_DrawMinigameIcons(PlayState* play) {
 
     if ((play->pauseCtx.state == PAUSE_STATE_OFF) && (play->pauseCtx.debugEditor == DEBUG_EDITOR_NONE)) {
         // Carrots rendering if the action corresponds to riding a horse
-        if (interfaceCtx->unk_212 == DO_ACTION_FASTER) {
+        if (interfaceCtx->aButtonHorseDoAction == DO_ACTION_FASTER) {
             // Load Carrot Icon
             gDPLoadTextureBlock(OVERLAY_DISP++, gCarrotIconTex, G_IM_FMT_RGBA, G_IM_SIZ_32b, 16, 16, 0,
                                 G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOMASK,
@@ -6229,7 +6327,7 @@ void Interface_Draw(PlayState* play) {
                         sRupeeCounterIconPrimColors[CUR_UPG_VALUE(UPG_WALLET)].b, interfaceCtx->magicAlpha);
         gDPSetEnvColor(OVERLAY_DISP++, sRupeeCounterIconEnvColors[CUR_UPG_VALUE(UPG_WALLET)].r,
                        sRupeeCounterIconEnvColors[CUR_UPG_VALUE(UPG_WALLET)].g,
-                       sRupeeCounterIconEnvColors[CUR_UPG_VALUE(UPG_WALLET)].b, 255);
+                       sRupeeCounterIconEnvColors[CUR_UPG_VALUE(4)].b, 255);
         OVERLAY_DISP =
             Gfx_DrawTexRectIA8(OVERLAY_DISP, gRupeeCounterIconTex, 16, 16, 26, 206, 16, 16, 1 << 10, 1 << 10);
 
@@ -6815,7 +6913,7 @@ void Interface_Update(PlayState* play) {
 
     // Update minigame State
     if ((play->pauseCtx.state == PAUSE_STATE_OFF) && (play->pauseCtx.debugEditor == DEBUG_EDITOR_NONE)) {
-        if ((u32)interfaceCtx->minigameState != MINIGAME_STATE_NONE) {
+        if (interfaceCtx->minigameState) { // != MINIGAME_STATE_NONE
             switch (interfaceCtx->minigameState) {
                 case MINIGAME_STATE_COUNTDOWN_SETUP_3:
                 case MINIGAME_STATE_COUNTDOWN_SETUP_2:
@@ -6885,12 +6983,12 @@ void Interface_Update(PlayState* play) {
             if (interfaceCtx->aButtonRoll >= 0.0f) {
                 interfaceCtx->aButtonRoll = 0.0f;
                 interfaceCtx->aButtonState = A_BTN_STATE_0;
-                interfaceCtx->unk_212 = interfaceCtx->aButtonDoAction;
-                aButtonDoAction = interfaceCtx->unk_212;
+                interfaceCtx->aButtonHorseDoAction = interfaceCtx->aButtonDoAction;
+                aButtonDoAction = interfaceCtx->aButtonHorseDoAction;
                 if ((aButtonDoAction == DO_ACTION_MAX) || (aButtonDoAction == DO_ACTION_MAX + 1)) {
                     aButtonDoAction = DO_ACTION_NONE;
                 }
-                func_80115428(&play->interfaceCtx, aButtonDoAction, 0);
+                Interface_LoadAButtonDoActionLabel(&play->interfaceCtx, aButtonDoAction, 0);
             }
             break;
 
@@ -6907,13 +7005,13 @@ void Interface_Update(PlayState* play) {
             if (interfaceCtx->aButtonRoll >= 0.0f) {
                 interfaceCtx->aButtonRoll = 0.0f;
                 interfaceCtx->aButtonState = A_BTN_STATE_0;
-                interfaceCtx->unk_212 = interfaceCtx->aButtonDoAction;
-                aButtonDoAction = interfaceCtx->unk_212;
+                interfaceCtx->aButtonHorseDoAction = interfaceCtx->aButtonDoAction;
+                aButtonDoAction = interfaceCtx->aButtonHorseDoAction;
                 if ((aButtonDoAction == DO_ACTION_MAX) || (aButtonDoAction == DO_ACTION_MAX + 1)) {
                     aButtonDoAction = DO_ACTION_NONE;
                 }
 
-                func_80115428(&play->interfaceCtx, aButtonDoAction, 0);
+                Interface_LoadAButtonDoActionLabel(&play->interfaceCtx, aButtonDoAction, 0);
             }
             break;
 
diff --git a/src/code/z_player_lib.c b/src/code/z_player_lib.c
index b09b0ed6c..f5b034f2b 100644
--- a/src/code/z_player_lib.c
+++ b/src/code/z_player_lib.c
@@ -1362,8 +1362,8 @@ s32 func_80123F14(PlayState* play) {
     return player->stateFlags1 & PLAYER_STATE1_800000;
 }
 
-s32 func_80123F2C(PlayState* play, s32 ammo) {
-    play->unk_1887C = ammo + 1;
+s32 Player_SetBButtonAmmo(PlayState* play, s32 ammo) {
+    play->bButtonAmmoPlusOne = ammo + 1;
 
     return 1;
 }
diff --git a/src/overlays/actors/ovl_Bg_Ingate/z_bg_ingate.c b/src/overlays/actors/ovl_Bg_Ingate/z_bg_ingate.c
index 736e11e36..ea0596ba3 100644
--- a/src/overlays/actors/ovl_Bg_Ingate/z_bg_ingate.c
+++ b/src/overlays/actors/ovl_Bg_Ingate/z_bg_ingate.c
@@ -131,7 +131,7 @@ s32 func_80953DA8(BgIngate* this, PlayState* play) {
         SET_EVENTINF(EVENTINF_41);
     }
     Camera_ChangeSetting(mainCam, CAM_SET_BOAT_CRUISE);
-    play->unk_1887C = 0x63;
+    play->bButtonAmmoPlusOne = 99;
 
     return false;
 }
@@ -143,7 +143,7 @@ void func_80953E38(PlayState* play) {
         CLEAR_EVENTINF(EVENTINF_41);
     }
 
-    play->unk_1887C = -1;
+    play->bButtonAmmoPlusOne = -1;
 }
 
 void func_80953EA4(BgIngate* this, PlayState* play) {
diff --git a/src/overlays/actors/ovl_En_Bomjimb/z_en_bomjimb.c b/src/overlays/actors/ovl_En_Bomjimb/z_en_bomjimb.c
index b3042e119..124ec7988 100644
--- a/src/overlays/actors/ovl_En_Bomjimb/z_en_bomjimb.c
+++ b/src/overlays/actors/ovl_En_Bomjimb/z_en_bomjimb.c
@@ -721,10 +721,10 @@ void func_80C02704(EnBomjimb* this, PlayState* play) {
     }
 }
 
+u16 D_80C03230[] = {
+    0x0721, 0x0722, 0x0723, 0x0724, 0x072C,
+};
 void func_80C02740(EnBomjimb* this, PlayState* play) {
-    static u16 D_80C03230[] = {
-        0x0721, 0x0722, 0x0723, 0x0724, 0x072C,
-    };
     Player* player = GET_PLAYER(play);
 
     func_80C012E0(this);
diff --git a/src/overlays/actors/ovl_En_Fsn/z_en_fsn.c b/src/overlays/actors/ovl_En_Fsn/z_en_fsn.c
index 99d48772b..d76e0cd98 100644
--- a/src/overlays/actors/ovl_En_Fsn/z_en_fsn.c
+++ b/src/overlays/actors/ovl_En_Fsn/z_en_fsn.c
@@ -825,7 +825,7 @@ void EnFsn_BeginInteraction(EnFsn* this, PlayState* play) {
             CutsceneManager_StartWithPlayerCsAndSetFlag(this->csId, &this->actor);
             this->cutsceneState = ENFSN_CUTSCENESTATE_PLAYING;
             if (Player_GetMask(play) == PLAYER_MASK_NONE) {
-                func_8011552C(play, DO_ACTION_NEXT);
+                Interface_SetAButtonDoAction(play, DO_ACTION_NEXT);
                 if (EnFsn_HasItemsToSell()) {
                     this->actionFunc = EnFsn_AskBuyOrSell;
                 } else {
@@ -916,7 +916,7 @@ void EnFsn_AskBuyOrSell(EnFsn* this, PlayState* play) {
             }
         }
     } else if (talkState == TEXT_STATE_CHOICE) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (!EnFsn_TestEndInteraction(this, play, CONTROLLER1(&play->state)) && Message_ShouldAdvance(play)) {
             switch (play->msgCtx.choiceIndex) {
                 case 0:
@@ -1100,7 +1100,7 @@ void EnFsn_ResumeShoppingInteraction(EnFsn* this, PlayState* play) {
             } else if (this->actor.textId != 0x29D6) {
                 this->actionFunc = EnFsn_AskCanBuyAterRunningOutOfItems;
             } else {
-                func_8011552C(play, DO_ACTION_DECIDE);
+                Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                 this->stickLeftPrompt.isEnabled = false;
                 this->stickRightPrompt.isEnabled = true;
                 this->actionFunc = EnFsn_FaceShopkeeperSelling;
@@ -1151,7 +1151,7 @@ void EnFsn_BrowseShelf(EnFsn* this, PlayState* play) {
         this->stickLeftPrompt.isEnabled = true;
         EnFsn_UpdateCursorPos(this, play);
         if (talkstate == TEXT_STATE_5) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnFsn_HasPlayerSelectedItem(this, play, CONTROLLER1(&play->state))) {
                 EnFsn_CursorLeftRight(this);
                 if (this->cursorIndex != prevCursorIdx) {
@@ -1259,7 +1259,7 @@ void EnFsn_SelectItem(EnFsn* this, PlayState* play) {
     u8 talkState = Message_GetState(&play->msgCtx);
 
     if (EnFsn_TakeItemOffShelf(this) && (talkState == TEXT_STATE_CHOICE)) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (!EnFsn_TestCancelOption(this, play, CONTROLLER1(&play->state)) && Message_ShouldAdvance(play)) {
             switch (play->msgCtx.choiceIndex) {
                 case 0:
@@ -1392,7 +1392,7 @@ void EnFsn_FaceShopkeeperSelling(EnFsn* this, PlayState* play) {
     u8 cursorIndex;
 
     if (talkState == TEXT_STATE_CHOICE) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (!EnFsn_TestEndInteraction(this, play, CONTROLLER1(&play->state)) &&
             (!Message_ShouldAdvance(play) || !EnFsn_FacingShopkeeperDialogResult(this, play)) &&
             this->stickAccumX > 0) {
@@ -1400,7 +1400,7 @@ void EnFsn_FaceShopkeeperSelling(EnFsn* this, PlayState* play) {
             if (cursorIndex != CURSOR_INVALID) {
                 this->cursorIndex = cursorIndex;
                 this->actionFunc = EnFsn_LookToShelf;
-                func_8011552C(play, DO_ACTION_DECIDE);
+                Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                 this->stickRightPrompt.isEnabled = false;
                 Audio_PlaySfx(NA_SE_SY_CURSOR);
             }
diff --git a/src/overlays/actors/ovl_En_Horse/z_en_horse.c b/src/overlays/actors/ovl_En_Horse/z_en_horse.c
index a54ac46fd..a0066f376 100644
--- a/src/overlays/actors/ovl_En_Horse/z_en_horse.c
+++ b/src/overlays/actors/ovl_En_Horse/z_en_horse.c
@@ -4017,8 +4017,8 @@ void func_80886C00(EnHorse* this, PlayState* play) {
 
     if (((this->action == ENHORSE_ACTION_MOUNTED_WALK) || (this->action == ENHORSE_ACTION_MOUNTED_TROT) ||
          (this->action == ENHORSE_ACTION_MOUNTED_GALLOP)) &&
-        (CHECK_BTN_ALL(input->press.button, BTN_A) || (AudioVoice_GetWord() == VOICE_WORD_ID_HIYA)) &&
-        (play->interfaceCtx.unk_212 == 8) && !(this->stateFlags & ENHORSE_BOOST) &&
+        (CHECK_BTN_ALL(input->press.button, BTN_A) || (AudioVoice_GetWord() == 5)) &&
+        (play->interfaceCtx.aButtonHorseDoAction == DO_ACTION_FASTER) && !(this->stateFlags & ENHORSE_BOOST) &&
         !(this->stateFlags & ENHORSE_FLAG_8) && !(this->stateFlags & ENHORSE_FLAG_9)) {
         if (this->numBoosts > 0) {
             Rumble_Request(0.0f, 180, 20, 100);
diff --git a/src/overlays/actors/ovl_En_Ossan/z_en_ossan.c b/src/overlays/actors/ovl_En_Ossan/z_en_ossan.c
index ded860c33..bd4bb8406 100644
--- a/src/overlays/actors/ovl_En_Ossan/z_en_ossan.c
+++ b/src/overlays/actors/ovl_En_Ossan/z_en_ossan.c
@@ -343,7 +343,7 @@ s32 EnOssan_TestCancelOption(EnOssan* this, PlayState* play, Input* input) {
 }
 
 void EnOssan_SetupStartShopping(PlayState* play, EnOssan* this, u8 skipHello) {
-    func_8011552C(play, DO_ACTION_NEXT);
+    Interface_SetAButtonDoAction(play, DO_ACTION_NEXT);
     if (!skipHello) {
         EnOssan_SetupAction(this, EnOssan_Hello);
     } else {
@@ -354,7 +354,7 @@ void EnOssan_SetupStartShopping(PlayState* play, EnOssan* this, u8 skipHello) {
 void EnOssan_StartShopping(PlayState* play, EnOssan* this) {
     EnOssan_SetupAction(this, EnOssan_FaceShopkeeper);
     Message_ContinueTextbox(play, 0x640);
-    func_8011552C(play, DO_ACTION_DECIDE);
+    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
     this->stickRightPrompt.isEnabled = true;
     this->stickLeftPrompt.isEnabled = true;
 }
@@ -612,7 +612,7 @@ s32 EnOssan_FacingShopkeeperDialogResult(EnOssan* this, PlayState* play) {
             }
             EnOssan_SetupAction(this, EnOssan_TalkToShopkeeper);
             Message_ContinueTextbox(play, sTalkOptionTextIds[this->actor.params]);
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             this->stickLeftPrompt.isEnabled = false;
             this->stickRightPrompt.isEnabled = false;
             return true;
@@ -642,7 +642,7 @@ void EnOssan_FaceShopkeeper(EnOssan* this, PlayState* play) {
         this->cutsceneState = ENOSSAN_CUTSCENESTATE_WAITING;
     } else {
         if (talkState == TEXT_STATE_CHOICE) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnOssan_TestEndInteraction(this, play, CONTROLLER1(&play->state)) &&
                 (!Message_ShouldAdvance(play) || !EnOssan_FacingShopkeeperDialogResult(this, play))) {
                 if (this->stickAccumX < 0) {
@@ -650,7 +650,7 @@ void EnOssan_FaceShopkeeper(EnOssan* this, PlayState* play) {
                     if (cursorIndex != CURSOR_INVALID) {
                         this->cursorIndex = cursorIndex;
                         EnOssan_SetupAction(this, EnOssan_LookToLeftShelf);
-                        func_8011552C(play, DO_ACTION_DECIDE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                         this->stickLeftPrompt.isEnabled = false;
                         Audio_PlaySfx(NA_SE_SY_CURSOR);
                     }
@@ -659,7 +659,7 @@ void EnOssan_FaceShopkeeper(EnOssan* this, PlayState* play) {
                     if (cursorIndex != CURSOR_INVALID) {
                         this->cursorIndex = cursorIndex;
                         EnOssan_SetupAction(this, EnOssan_LookToRightShelf);
-                        func_8011552C(play, DO_ACTION_DECIDE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                         this->stickRightPrompt.isEnabled = false;
                         Audio_PlaySfx(NA_SE_SY_CURSOR);
                     }
@@ -865,7 +865,7 @@ void EnOssan_BrowseLeftShelf(EnOssan* this, PlayState* play) {
         this->stickRightPrompt.isEnabled = true;
         EnOssan_UpdateCursorPos(play, this);
         if (talkState == TEXT_STATE_5) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnOssan_HasPlayerSelectedItem(play, this, CONTROLLER1(&play->state))) {
                 if (this->moveHorizontal) {
                     if (this->stickAccumX > 0) {
@@ -923,7 +923,7 @@ void EnOssan_BrowseRightShelf(EnOssan* this, PlayState* play) {
         this->stickLeftPrompt.isEnabled = true;
         EnOssan_UpdateCursorPos(play, this);
         if (talkState == TEXT_STATE_5) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnOssan_HasPlayerSelectedItem(play, this, CONTROLLER1(&play->state))) {
                 if (this->moveHorizontal != 0) {
                     if (this->stickAccumX < 0) {
@@ -1073,7 +1073,7 @@ void EnOssan_SelectItem(EnOssan* this, PlayState* play) {
     u8 talkState = Message_GetState(&play->msgCtx);
 
     if (EnOssan_TakeItemOffShelf(this) && (talkState == TEXT_STATE_CHOICE)) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (!EnOssan_TestCancelOption(this, play, CONTROLLER1(&play->state)) && Message_ShouldAdvance(play)) {
             switch (play->msgCtx.choiceIndex) {
                 case 0:
@@ -1144,7 +1144,7 @@ void EnOssan_ContinueShopping(EnOssan* this, PlayState* play) {
     EnGirlA* item;
 
     if (talkState == TEXT_STATE_CHOICE) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (Message_ShouldAdvance(play)) {
             EnOssan_ResetItemPosition(this);
             item = this->items[this->cursorIndex];
diff --git a/src/overlays/actors/ovl_En_Sob1/z_en_sob1.c b/src/overlays/actors/ovl_En_Sob1/z_en_sob1.c
index 42a2b3663..761d2f468 100644
--- a/src/overlays/actors/ovl_En_Sob1/z_en_sob1.c
+++ b/src/overlays/actors/ovl_En_Sob1/z_en_sob1.c
@@ -500,7 +500,7 @@ s32 EnSob1_TestCancelOption(EnSob1* this, PlayState* play, Input* input) {
 }
 
 void EnSob1_SetupStartShopping(PlayState* play, EnSob1* this, u8 skipHello) {
-    func_8011552C(play, DO_ACTION_NEXT);
+    Interface_SetAButtonDoAction(play, DO_ACTION_NEXT);
     if (!skipHello) {
         EnSob1_SetupAction(this, EnSob1_Hello);
     } else {
@@ -511,7 +511,7 @@ void EnSob1_SetupStartShopping(PlayState* play, EnSob1* this, u8 skipHello) {
 void EnSob1_StartShopping(PlayState* play, EnSob1* this) {
     EnSob1_SetupAction(this, EnSob1_FaceShopkeeper);
     Message_ContinueTextbox(play, sFacingShopkeeperTextIds[this->shopType]);
-    func_8011552C(play, DO_ACTION_DECIDE);
+    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
     this->stickLeftPrompt.isEnabled = false;
     this->stickRightPrompt.isEnabled = true;
 }
@@ -520,7 +520,7 @@ void EnSob1_TalkToShopkeeper(PlayState* play, EnSob1* this) {
     EnSob1_SetupAction(this, EnSob1_TalkingToShopkeeper);
     this->talkOptionTextId = EnSob1_GetTalkOption(this, play);
     Message_ContinueTextbox(play, this->talkOptionTextId);
-    func_8011552C(play, DO_ACTION_DECIDE);
+    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
     this->stickLeftPrompt.isEnabled = false;
     this->stickRightPrompt.isEnabled = false;
 }
@@ -687,7 +687,7 @@ void EnSob1_FaceShopkeeper(EnSob1* this, PlayState* play) {
         this->cutsceneState = ENSOB1_CUTSCENESTATE_WAITING;
     } else {
         if (talkState == TEXT_STATE_CHOICE) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnSob1_TestEndInteraction(this, play, CONTROLLER1(&play->state))) {
                 if (!Message_ShouldAdvance(play) || !EnSob1_FacingShopkeeperDialogResult(this, play)) {
                     if (this->stickAccumX > 0) {
@@ -695,7 +695,7 @@ void EnSob1_FaceShopkeeper(EnSob1* this, PlayState* play) {
                         if (cursorIndex != CURSOR_INVALID) {
                             this->cursorIndex = cursorIndex;
                             EnSob1_SetupAction(this, EnSob1_LookToShelf);
-                            func_8011552C(play, DO_ACTION_DECIDE);
+                            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                             this->stickRightPrompt.isEnabled = false;
                             Audio_PlaySfx(NA_SE_SY_CURSOR);
                         }
@@ -940,7 +940,7 @@ void EnSob1_BrowseShelf(EnSob1* this, PlayState* play) {
         this->stickLeftPrompt.isEnabled = true;
         EnSob1_UpdateCursorPos(play, this);
         if (talkState == TEXT_STATE_5) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnSob1_HasPlayerSelectedItem(play, this, CONTROLLER1(&play->state))) {
                 EnSob1_CursorLeftRight(play, this);
                 cursorIndex = this->cursorIndex;
@@ -1060,7 +1060,7 @@ void EnSob1_SelectItem(EnSob1* this, PlayState* play) {
     u8 talkState = Message_GetState(&play->msgCtx);
 
     if (EnSob1_TakeItemOffShelf(this) && (talkState == TEXT_STATE_CHOICE)) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (!EnSob1_TestCancelOption(this, play, CONTROLLER1(&play->state)) && Message_ShouldAdvance(play)) {
             switch (play->msgCtx.choiceIndex) {
                 case 0:
diff --git a/src/overlays/actors/ovl_En_Syateki_Man/z_en_syateki_man.c b/src/overlays/actors/ovl_En_Syateki_Man/z_en_syateki_man.c
index c501e30b3..0a0e723f2 100644
--- a/src/overlays/actors/ovl_En_Syateki_Man/z_en_syateki_man.c
+++ b/src/overlays/actors/ovl_En_Syateki_Man/z_en_syateki_man.c
@@ -420,7 +420,7 @@ void EnSyatekiMan_Swamp_HandleNormalMessage(EnSyatekiMan* this, PlayState* play)
                 player->actor.freezeTimer = 0;
                 Interface_InitMinigame(play);
                 play->interfaceCtx.minigameAmmo = 80;
-                func_80123F2C(play, 80);
+                Player_SetBButtonAmmo(play, 80);
                 this->shootingGameState = SG_GAME_STATE_RUNNING;
                 this->actionFunc = EnSyatekiMan_Swamp_StartGame;
                 Audio_PlaySubBgm(NA_BGM_TIMED_MINI_GAME);
@@ -782,7 +782,7 @@ void EnSyatekiMan_Town_HandleNormalMessage(EnSyatekiMan* this, PlayState* play)
                 player->actor.freezeTimer = 0;
                 this->flagsIndex = 0;
                 Interface_InitMinigame(play);
-                func_80123F2C(play, 0x63);
+                Player_SetBButtonAmmo(play, 99);
                 this->shootingGameState = SG_GAME_STATE_RUNNING;
                 Audio_PlaySubBgm(NA_BGM_TIMED_MINI_GAME);
                 this->actionFunc = EnSyatekiMan_Town_StartGame;
@@ -1180,7 +1180,7 @@ void EnSyatekiMan_Swamp_EndGame(EnSyatekiMan* this, PlayState* play) {
     }
 
     if (this->talkWaitTimer < 5) {
-        play->unk_1887C = -10;
+        play->bButtonAmmoPlusOne = -10;
     }
 }
 
@@ -1453,7 +1453,7 @@ void EnSyatekiMan_Town_EndGame(EnSyatekiMan* this, PlayState* play) {
     }
 
     if (this->talkWaitTimer < 5) {
-        play->unk_1887C = -10;
+        play->bButtonAmmoPlusOne = -10;
     }
 }
 
diff --git a/src/overlays/actors/ovl_En_Test4/z_en_test4.c b/src/overlays/actors/ovl_En_Test4/z_en_test4.c
index 0e2e81bbd..e23507ded 100644
--- a/src/overlays/actors/ovl_En_Test4/z_en_test4.c
+++ b/src/overlays/actors/ovl_En_Test4/z_en_test4.c
@@ -21,17 +21,22 @@ void func_80A42AB8(EnTest4* this, PlayState* play);
 void func_80A42F20(EnTest4* this, PlayState* play);
 
 ActorInit En_Test4_InitVars = {
-    /**/ ACTOR_EN_TEST4,
-    /**/ ACTORCAT_SWITCH,
-    /**/ FLAGS,
-    /**/ GAMEPLAY_KEEP,
-    /**/ sizeof(EnTest4),
-    /**/ EnTest4_Init,
-    /**/ EnTest4_Destroy,
-    /**/ EnTest4_Update,
-    /**/ NULL,
+    ACTOR_EN_TEST4,
+    ACTORCAT_SWITCH,
+    FLAGS,
+    GAMEPLAY_KEEP,
+    sizeof(EnTest4),
+    (ActorFunc)EnTest4_Init,
+    (ActorFunc)EnTest4_Destroy,
+    (ActorFunc)EnTest4_Update,
+    (ActorFunc)NULL, // Interface_DrawClock
 };
 
+typedef enum {
+    /* 0 */ TIME_DAY,
+    /* 1 */ TIME_NIGHT,
+} NightFlag;
+
 static s32 sIsLoaded = false;
 // "Night of ..."
 static s16 sNightMessages1[] = { 0x1BB4, 0x1BB5, 0x1BB6 };
@@ -41,7 +46,7 @@ static s16 sDayMessages1[] = { 0x1BB2, 0x1BB2, 0x1BB3 };
 static s16 sNightMessages2[] = { 0x1BB4, 0x1BB5, 0x1BB6 };
 // "Dawn of ..." (Note: first two message are the same)
 static s16 sDayMessages2[] = { 0x1BB2, 0x1BB2, 0x1BB3 };
-static u16 D_80A43364[] = { CLOCK_TIME(6, 0), CLOCK_TIME(18, 0) };
+static u16 sDayNightTransitionTimes[] = { CLOCK_TIME(6, 0), CLOCK_TIME(18, 0) };
 
 static s16 sCsIdList[2];
 static s16 sCurCsId;
@@ -369,7 +374,7 @@ void func_80A42AB8(EnTest4* this, PlayState* play) {
     if ((play->transitionMode == TRANS_MODE_OFF) && !Play_InCsMode(play) && (play->numSetupActors <= 0) &&
         (play->roomCtx.status == 0) && !Play_IsDebugCamEnabled()) {
         s16 temp_a2;
-        u16 temp_a0 = D_80A43364[this->csIdIndex];
+        u16 temp_a0 = sDayNightTransitionTimes[this->csIdIndex];
         s16 temp_a3;
         s16 bellDiff;
         s16 new_var;
diff --git a/src/overlays/actors/ovl_En_Trt/z_en_trt.c b/src/overlays/actors/ovl_En_Trt/z_en_trt.c
index 13041c81f..3aa34a537 100644
--- a/src/overlays/actors/ovl_En_Trt/z_en_trt.c
+++ b/src/overlays/actors/ovl_En_Trt/z_en_trt.c
@@ -253,7 +253,7 @@ s32 EnTrt_TestCancelOption(EnTrt* this, PlayState* play, Input* input) {
 }
 
 void EnTrt_SetupStartShopping(PlayState* play, EnTrt* this, u8 skipHello) {
-    func_8011552C(play, DO_ACTION_NEXT);
+    Interface_SetAButtonDoAction(play, DO_ACTION_NEXT);
     if (!skipHello) {
         this->actionFunc = EnTrt_Hello;
     } else {
@@ -263,7 +263,7 @@ void EnTrt_SetupStartShopping(PlayState* play, EnTrt* this, u8 skipHello) {
 
 void EnTrt_StartShopping(PlayState* play, EnTrt* this) {
     Message_ContinueTextbox(play, 0x83E);
-    func_8011552C(play, DO_ACTION_DECIDE);
+    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
     this->stickLeftPrompt.isEnabled = false;
     this->stickRightPrompt.isEnabled = true;
     this->actionFunc = EnTrt_FaceShopkeeper;
@@ -542,7 +542,7 @@ void EnTrt_FaceShopkeeper(EnTrt* this, PlayState* play) {
         CutsceneManager_Queue(this->csId);
         this->cutsceneState = ENTRT_CUTSCENESTATE_WAITING;
     } else if (talkState == TEXT_STATE_CHOICE) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (!EnTrt_TestEndInteraction(this, play, CONTROLLER1(&play->state))) {
             if ((!Message_ShouldAdvance(play) || !EnTrt_FacingShopkeeperDialogResult(this, play)) &&
                 (this->stickAccumX > 0)) {
@@ -550,7 +550,7 @@ void EnTrt_FaceShopkeeper(EnTrt* this, PlayState* play) {
                 if (cursorIndex != CURSOR_INVALID) {
                     this->cursorIndex = cursorIndex;
                     this->actionFunc = EnTrt_LookToShelf;
-                    func_8011552C(play, DO_ACTION_DECIDE);
+                    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                     this->stickRightPrompt.isEnabled = false;
                     Audio_PlaySfx(NA_SE_SY_CURSOR);
                 }
@@ -644,7 +644,7 @@ void EnTrt_BrowseShelf(EnTrt* this, PlayState* play) {
         this->stickLeftPrompt.isEnabled = true;
         EnTrt_UpdateCursorPos(play, this);
         if (talkState == TEXT_STATE_5) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnTrt_HasPlayerSelectedItem(play, this, CONTROLLER1(&play->state))) {
                 EnTrt_CursorLeftRight(play, this);
                 if (this->cursorIndex != prevCursorIdx) {
@@ -737,7 +737,7 @@ void EnTrt_SelectItem(EnTrt* this, PlayState* play) {
 
     if (EnTrt_TakeItemOffShelf(this)) {
         if (talkState == TEXT_STATE_CHOICE) {
-            func_8011552C(play, DO_ACTION_DECIDE);
+            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
             if (!EnTrt_TestCancelOption(this, play, CONTROLLER1(&play->state)) && Message_ShouldAdvance(play)) {
                 switch (play->msgCtx.choiceIndex) {
                     case 0:
@@ -909,11 +909,9 @@ void EnTrt_BeginInteraction(EnTrt* this, PlayState* play) {
         this->animIndex = TRT_ANIM_HANDS_ON_COUNTER;
         switch (this->textId) {
             case 0x834:
-                if (!CHECK_WEEKEVENTREG(WEEKEVENTREG_SAVED_KOUME) &&
-                    !CHECK_WEEKEVENTREG(WEEKEVENTREG_RECEIVED_RED_POTION_FOR_KOUME) &&
-                    !CHECK_WEEKEVENTREG(WEEKEVENTREG_TALKED_KOUME_INJURED) &&
-                    !CHECK_WEEKEVENTREG(WEEKEVENTREG_TALKED_KOUME_KIOSK_EMPTY)) {
-                    func_8011552C(play, DO_ACTION_DECIDE);
+                if (!CHECK_WEEKEVENTREG(WEEKEVENTREG_SAVED_KOUME) && !CHECK_WEEKEVENTREG(WEEKEVENTREG_RECEIVED_RED_POTION_FOR_KOUME) &&
+                    !CHECK_WEEKEVENTREG(WEEKEVENTREG_TALKED_KOUME_INJURED) && !CHECK_WEEKEVENTREG(WEEKEVENTREG_TALKED_KOUME_KIOSK_EMPTY)) {
+                    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                     this->stickLeftPrompt.isEnabled = false;
                     this->stickRightPrompt.isEnabled = true;
                     this->actionFunc = EnTrt_Hello;
@@ -923,7 +921,7 @@ void EnTrt_BeginInteraction(EnTrt* this, PlayState* play) {
                 break;
 
             case 0x83E:
-                func_8011552C(play, DO_ACTION_DECIDE);
+                Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                 this->stickLeftPrompt.isEnabled = false;
                 this->stickRightPrompt.isEnabled = true;
                 this->actionFunc = EnTrt_FaceShopkeeper;
@@ -1141,7 +1139,7 @@ void EnTrt_ContinueShopping(EnTrt* this, PlayState* play) {
     EnGirlA* item;
 
     if (talkState == TEXT_STATE_CHOICE) {
-        func_8011552C(play, DO_ACTION_DECIDE);
+        Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
         if (Message_ShouldAdvance(play)) {
             EnTrt_ResetItemPosition(this);
             item = this->items[this->cursorIndex];
@@ -1455,7 +1453,7 @@ void EnTrt_TalkToShopkeeper(EnTrt* this, PlayState* play) {
 void EnTrt_SetupTalkToShopkeeper(PlayState* play, EnTrt* this) {
     this->actionFunc = EnTrt_TalkToShopkeeper;
     Message_ContinueTextbox(play, this->talkOptionTextId);
-    func_8011552C(play, DO_ACTION_DECIDE);
+    Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
     this->stickLeftPrompt.isEnabled = false;
     this->stickRightPrompt.isEnabled = false;
 }
diff --git a/src/overlays/actors/ovl_Obj_Um/z_obj_um.c b/src/overlays/actors/ovl_Obj_Um/z_obj_um.c
index 7763baa50..185f5dee4 100644
--- a/src/overlays/actors/ovl_Obj_Um/z_obj_um.c
+++ b/src/overlays/actors/ovl_Obj_Um/z_obj_um.c
@@ -1726,10 +1726,10 @@ void ObjUm_Update(Actor* thisx, PlayState* play) {
     }
 
     if (this->flags & OBJ_UM_FLAG_0010) {
-        func_80123F2C(play, 0x63);
+        Player_SetBButtonAmmo(play, 99);
         this->flags &= ~OBJ_UM_FLAG_0010;
     } else if (this->flags & OBJ_UM_FLAG_0004) {
-        func_80123F2C(play, -3);
+        Player_SetBButtonAmmo(play, -3);
         this->flags &= ~OBJ_UM_FLAG_0004;
     }
 
diff --git a/src/overlays/actors/ovl_player_actor/z_player.c b/src/overlays/actors/ovl_player_actor/z_player.c
index a8cd45917..cce1a9b12 100644
--- a/src/overlays/actors/ovl_player_actor/z_player.c
+++ b/src/overlays/actors/ovl_player_actor/z_player.c
@@ -3797,7 +3797,7 @@ void Player_UpdateItems(Player* this, PlayState* play) {
     if ((this->actor.id == ACTOR_PLAYER) && !(this->stateFlags3 & PLAYER_STATE3_START_CHANGING_HELD_ITEM)) {
         if ((this->heldItemAction == this->itemAction) || (this->stateFlags1 & PLAYER_STATE1_400000)) {
             if ((gSaveContext.save.saveInfo.playerData.health != 0) && (play->csCtx.state == CS_STATE_IDLE)) {
-                if ((this->csAction == PLAYER_CSACTION_NONE) && (play->unk_1887C == 0) &&
+                if ((this->csAction == PLAYER_CSACTION_NONE) && (play->bButtonAmmoPlusOne == 0) &&
                     (play->activeCamId == CAM_ID_MAIN)) {
                     if (!func_8082DA90(play) && (gSaveContext.timerStates[TIMER_ID_MINIGAME_2] != TIMER_STATE_STOP)) {
                         Player_ProcessItemButtons(this, play);
@@ -3836,8 +3836,8 @@ s32 func_808305BC(PlayState* play, Player* this, ItemId* item, ArrowType* typePa
     if (gSaveContext.minigameStatus == MINIGAME_STATUS_ACTIVE) {
         return play->interfaceCtx.minigameAmmo;
     }
-    if (play->unk_1887C != 0) {
-        return play->unk_1887C;
+    if (play->bButtonAmmoPlusOne != 0) {
+        return play->bButtonAmmoPlusOne;
     }
 
     return AMMO(*item);
@@ -3998,7 +3998,7 @@ s32 func_80830B88(PlayState* play, Player* this) {
         if (!(this->stateFlags1 & (PLAYER_STATE1_400000 | PLAYER_STATE1_800000 | PLAYER_STATE1_20000000))) {
             if (!(this->stateFlags1 & PLAYER_STATE1_8000000) || ((this->currentBoots >= PLAYER_BOOTS_ZORA_UNDERWATER) &&
                                                                  (this->actor.bgCheckFlags & BGCHECKFLAG_GROUND))) {
-                if ((play->unk_1887C == 0) && (this->heldItemAction == this->itemAction)) {
+                if ((play->bButtonAmmoPlusOne == 0) && (this->heldItemAction == this->itemAction)) {
                     if ((this->transformation == PLAYER_FORM_FIERCE_DEITY) ||
                         (!Player_IsGoronOrDeku(this) &&
                          ((((this->transformation == PLAYER_FORM_ZORA)) &&
@@ -4090,13 +4090,14 @@ s32 func_80830E30(Player* this, PlayState* play) {
 }
 
 s32 func_80830F9C(PlayState* play) {
-    return (play->unk_1887C > 0) && CHECK_BTN_ALL(sPlayerControlInput->press.button, BTN_B);
+    return (play->bButtonAmmoPlusOne > 0) && CHECK_BTN_ALL(sPlayerControlInput->press.button, BTN_B);
 }
 
 s32 func_80830FD4(PlayState* play) {
-    return (play->unk_1887C != 0) &&
-           ((play->unk_1887C < 0) || CHECK_BTN_ANY(sPlayerControlInput->cur.button,
-                                                   BTN_CRIGHT | BTN_CLEFT | BTN_CDOWN | BTN_CUP | BTN_B | BTN_A));
+    return (play->bButtonAmmoPlusOne != 0) &&
+           ((play->bButtonAmmoPlusOne < 0) ||
+            CHECK_BTN_ANY(sPlayerControlInput->cur.button,
+                          BTN_CRIGHT | BTN_CLEFT | BTN_CDOWN | BTN_CUP | BTN_B | BTN_A));
 }
 
 s32 func_80831010(Player* this, PlayState* play) {
@@ -4146,15 +4147,15 @@ s32 func_80831194(PlayState* play, Player* this) {
                         (play->sceneId != SCENE_SYATEKI_MORI)) {
                         play->interfaceCtx.minigameAmmo--;
                     }
-                } else if (play->unk_1887C != 0) {
-                    play->unk_1887C--;
+                } else if (play->bButtonAmmoPlusOne != 0) {
+                    play->bButtonAmmoPlusOne--;
                 } else {
                     Inventory_ChangeAmmo(item, -1);
                 }
             }
 
-            if (play->unk_1887C == 1) {
-                play->unk_1887C = -10;
+            if (play->bButtonAmmoPlusOne == 1) {
+                play->bButtonAmmoPlusOne = -10;
             }
 
             Player_RequestRumble(play, this, 150, 10, 150, SQ(0));
@@ -8007,7 +8008,7 @@ s32 Player_ActionChange_6(Player* this, PlayState* play) {
 
 s32 Player_ActionChange_11(Player* this, PlayState* play) {
     if (CHECK_BTN_ALL(sPlayerControlInput->cur.button, BTN_R) && (this->unk_AA5 == PLAYER_UNKAA5_0) &&
-        (play->unk_1887C == 0)) {
+        (play->bButtonAmmoPlusOne == 0)) {
         if (Player_IsGoronOrDeku(this) ||
             ((((this->transformation == PLAYER_FORM_ZORA) && !(this->stateFlags1 & PLAYER_STATE1_2000000)) ||
               ((this->transformation == PLAYER_FORM_HUMAN) && (this->currentShield != PLAYER_SHIELD_NONE))) &&
@@ -10784,7 +10785,7 @@ void Player_Init(Actor* thisx, PlayState* play) {
         return;
     }
 
-    play->unk_1887C = 0;
+    play->bButtonAmmoPlusOne = 0;
     play->unk_1887D = 0;
     play->unk_1887E = 0;
     this->giObjectSegment = ZeldaArena_Malloc(0x2000);
@@ -10974,9 +10975,9 @@ void Player_SetDoAction(PlayState* play, Player* this) {
     }
 
     if (doActionB > -1) {
-        func_801155B4(play, doActionB);
-    } else if (play->interfaceCtx.unk_21C != 0) {
-        play->interfaceCtx.unk_21C = 0;
+        Interface_SetBButtonDoAction(play, doActionB);
+    } else if (play->interfaceCtx.bButtonDoActionActive) {
+        play->interfaceCtx.bButtonDoActionActive = false;
         play->interfaceCtx.bButtonDoAction = 0;
     }
 
@@ -11118,19 +11119,19 @@ void Player_SetDoAction(PlayState* play, Player* this) {
             this->putAwayCountdown--;
         }
 
-        func_8011552C(play, doActionA);
+        Interface_SetAButtonDoAction(play, doActionA);
 
         // Set Tatl state
         if (!Play_InCsMode(play) && (this->stateFlags2 & PLAYER_STATE2_200000) &&
             !(this->stateFlags3 & PLAYER_STATE3_100)) {
             if (this->lockOnActor != NULL) {
-                func_80115764(play, 0x2B);
+                Interface_SetTatlCall(play, TATL_STATE_2B);
             } else {
-                func_80115764(play, 0x2A);
+                Interface_SetTatlCall(play, TATL_STATE_2A);
             }
             CutsceneManager_Queue(CS_ID_GLOBAL_TALK);
         } else {
-            func_80115764(play, 0x2C);
+            Interface_SetTatlCall(play, TATL_STATE_2C);
         }
     }
 }
@@ -12806,7 +12807,7 @@ s32 func_80847190(PlayState* play, Player* this, s32 arg2) {
 
     this->unk_AA6 |= 2;
 
-    return func_80832754(this, (play->unk_1887C != 0) || func_800B7128(this) || func_8082EF20(this));
+    return func_80832754(this, (play->bButtonAmmoPlusOne != 0) || func_800B7128(this) || func_8082EF20(this));
 }
 
 void func_8084748C(Player* this, f32* speed, f32 speedTarget, s16 yawTarget) {
@@ -12886,10 +12887,10 @@ void func_808477D0(PlayState* play, Player* this, Input* input, f32 arg3) {
 }
 
 s32 func_80847880(PlayState* play, Player* this) {
-    if (play->unk_1887C != 0) {
+    if (play->bButtonAmmoPlusOne != 0) {
         if (play->sceneId == SCENE_20SICHITAI) {
             Player_SetAction(play, this, Player_Action_80, 0);
-            play->unk_1887C = 0;
+            play->bButtonAmmoPlusOne = 0;
             this->csAction = PLAYER_CSACTION_NONE;
             return true;
         }
@@ -13286,9 +13287,8 @@ s32 Player_UpperAction_1(Player* this, PlayState* play) {
 s32 Player_UpperAction_ChangeHeldItem(Player* this, PlayState* play) {
     if (PlayerAnimation_Update(play, &this->skelAnimeUpper) ||
         ((Player_ItemToItemAction(this, this->heldItemId) == this->heldItemAction) &&
-         (sPlayerUseHeldItem =
-              (sPlayerUseHeldItem || ((this->modelAnimType != PLAYER_ANIMTYPE_3) &&
-                                      (this->heldItemAction != PLAYER_IA_DEKU_STICK) && (play->unk_1887C == 0)))))) {
+         (sPlayerUseHeldItem = sPlayerUseHeldItem || ((this->modelAnimType != PLAYER_ANIMTYPE_3) &&
+                                      (this->heldItemAction != PLAYER_IA_DEKU_STICK) && (play->bButtonAmmoPlusOne == 0))))) {
         Player_SetUpperAction(play, this, sPlayerUpperActionUpdateFuncs[this->heldItemAction]);
         this->unk_ACC = 0;
         this->unk_AA4 = 0;
@@ -15258,11 +15258,11 @@ void Player_Action_35(Player* this, PlayState* play) {
                     func_801226E0(play, ((void)0, gSaveContext.respawn[RESPAWN_MODE_DOWN].data));
                 }
 
-                if (play->unk_1887C != 0) {
+                if (play->bButtonAmmoPlusOne != 0) {
                     play->func_18780(this, play);
                     Player_SetAction(play, this, Player_Action_80, 0);
-                    if (play->sceneId == SCENE_20SICHITAI) {
-                        play->unk_1887C = 0;
+                    if (play->sceneId == 0x45) {
+                        play->bButtonAmmoPlusOne = 0;
                     }
                 } else if (!Player_ActionChange_4(this, play)) {
                     func_8083B2E4(this, play);
@@ -17610,17 +17610,17 @@ void Player_Action_79(Player* this, PlayState* play) {
 }
 
 void Player_Action_80(Player* this, PlayState* play) {
-    if (play->unk_1887C < 0) {
-        play->unk_1887C = 0;
+    if (play->bButtonAmmoPlusOne < 0) {
+        play->bButtonAmmoPlusOne = 0;
         func_80839ED0(this, play);
     } else if (this->av1.actionVar1 == 0) {
         if ((play->sceneId != SCENE_20SICHITAI) && CHECK_BTN_ALL(sPlayerControlInput->press.button, BTN_B)) {
-            play->unk_1887C = 10;
+            play->bButtonAmmoPlusOne = 10;
             func_80847880(play, this);
             Player_SetAction(play, this, Player_Action_80, 1);
             this->av1.actionVar1 = 1;
         } else {
-            play->unk_1887C = 0;
+            play->bButtonAmmoPlusOne = 0;
             func_80847190(play, this, 0);
 
             if (play->actorCtx.flags & ACTORCTX_FLAG_PICTO_BOX_ON) {
@@ -17638,12 +17638,12 @@ void Player_Action_80(Player* this, PlayState* play) {
         }
     } else if (CHECK_BTN_ANY(sPlayerControlInput->press.button,
                              BTN_CRIGHT | BTN_CLEFT | BTN_CDOWN | BTN_CUP | BTN_R | BTN_A)) {
-        play->unk_1887C = -1;
+        play->bButtonAmmoPlusOne = -1;
         Player_Action_81(this, play);
         Player_SetAction(play, this, Player_Action_80, 0);
         this->av1.actionVar1 = 0;
     } else {
-        play->unk_1887C = 10;
+        play->bButtonAmmoPlusOne = 10;
         Player_Action_81(this, play);
     }
 }
@@ -17656,9 +17656,9 @@ void Player_Action_81(Player* this, PlayState* play) {
     this->upperLimbRot.y = func_80847190(play, this, 1) - this->actor.shape.rot.y;
     this->unk_AA6 |= 0x80;
 
-    if (play->unk_1887C < 0) {
-        play->unk_1887C++;
-        if (play->unk_1887C == 0) {
+    if (play->bButtonAmmoPlusOne < 0) {
+        play->bButtonAmmoPlusOne++;
+        if (play->bButtonAmmoPlusOne == 0) {
             func_80839ED0(this, play);
         }
     }
diff --git a/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_collect.c b/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_collect.c
index 6c3af4569..6032f374a 100644
--- a/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_collect.c
+++ b/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_collect.c
@@ -623,8 +623,8 @@ void KaleidoScope_UpdateQuestCursor(PlayState* play) {
                 if (nextCursorPoint == CURSOR_TO_LEFT) {
                     KaleidoScope_MoveCursorToSpecialPos(play, PAUSE_CURSOR_PAGE_LEFT);
                     pauseCtx->mainState = PAUSE_MAIN_STATE_IDLE;
-                    if (interfaceCtx->unk_212 == 6) {
-                        func_8011552C(play, DO_ACTION_INFO);
+                    if (interfaceCtx->aButtonHorseDoAction == DO_ACTION_DECIDE) {
+                        Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
                     }
                     return;
                 } else {
@@ -807,8 +807,8 @@ void KaleidoScope_UpdateQuestCursor(PlayState* play) {
 
                         pauseCtx->mainState = PAUSE_MAIN_STATE_IDLE_CURSOR_ON_SONG;
 
-                        if (interfaceCtx->unk_212 != 6) {
-                            func_8011552C(play, DO_ACTION_DECIDE);
+                        if (interfaceCtx->aButtonHorseDoAction != DO_ACTION_DECIDE) {
+                            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                         }
 
                         // Stop receiving input to play a song as mentioned above
@@ -820,8 +820,8 @@ void KaleidoScope_UpdateQuestCursor(PlayState* play) {
                             Interface_SetHudVisibility(HUD_VISIBILITY_ALL);
                         }
                     } else {
-                        if (interfaceCtx->unk_212 != 6) {
-                            func_8011552C(play, DO_ACTION_DECIDE);
+                        if (interfaceCtx->aButtonHorseDoAction != DO_ACTION_DECIDE) {
+                            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                         }
                         if (gSaveContext.buttonStatus[EQUIP_SLOT_A] != BTN_DISABLED) {
                             gSaveContext.buttonStatus[EQUIP_SLOT_A] = BTN_DISABLED;
@@ -831,12 +831,12 @@ void KaleidoScope_UpdateQuestCursor(PlayState* play) {
                     }
                 } else {
                     if ((cursor == QUEST_BOMBERS_NOTEBOOK) && (pauseCtx->cursorItem[PAUSE_QUEST] != PAUSE_ITEM_NONE)) {
-                        if (interfaceCtx->unk_212 != 6) {
-                            func_8011552C(play, DO_ACTION_DECIDE);
+                        if (interfaceCtx->aButtonHorseDoAction != DO_ACTION_DECIDE) {
+                            Interface_SetAButtonDoAction(play, DO_ACTION_DECIDE);
                         }
                         pauseCtx->cursorColorSet = PAUSE_CURSOR_COLOR_SET_BLUE;
-                    } else if (interfaceCtx->unk_212 == 6) {
-                        func_8011552C(play, DO_ACTION_INFO);
+                    } else if (interfaceCtx->aButtonHorseDoAction == DO_ACTION_DECIDE) {
+                        Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
                     }
 
                     if ((pauseCtx->cursorItem[PAUSE_QUEST] != PAUSE_ITEM_NONE) && (msgCtx->msgLength == 0)) {
diff --git a/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_scope_NES.c b/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_scope_NES.c
index 8268949c7..70c239996 100644
--- a/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_scope_NES.c
+++ b/src/overlays/kaleido_scope/ovl_kaleido_scope/z_kaleido_scope_NES.c
@@ -352,8 +352,8 @@ void KaleidoScope_HandlePageToggles(PlayState* play, Input* input) {
 
     if (CHECK_BTN_ALL(input->cur.button, BTN_DRIGHT) || CHECK_BTN_ALL(input->press.button, BTN_R)) {
         // Switch the page to the right regardless of where the cursor is
-        if (interfaceCtx->unk_212 == 6) {
-            func_8011552C(play, 0x15);
+        if (interfaceCtx->aButtonHorseDoAction == DO_ACTION_DECIDE) {
+            Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
         }
         KaleidoScope_SwitchPage(pauseCtx, SWITCH_PAGE_RIGHT);
         return;
@@ -361,8 +361,8 @@ void KaleidoScope_HandlePageToggles(PlayState* play, Input* input) {
 
     if (CHECK_BTN_ALL(input->cur.button, BTN_DLEFT) || CHECK_BTN_ALL(input->press.button, BTN_Z)) {
         // Switch the page to the left regardless of where the cursor is
-        if (interfaceCtx->unk_212 == 6) {
-            func_8011552C(play, 0x15);
+        if (interfaceCtx->aButtonHorseDoAction == DO_ACTION_DECIDE) {
+            Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
         }
         KaleidoScope_SwitchPage(pauseCtx, SWITCH_PAGE_LEFT);
         return;
@@ -2792,7 +2792,7 @@ void KaleidoScope_UpdateOpening(PlayState* play) {
         pauseCtx->mainState = PAUSE_MAIN_STATE_IDLE;
         pauseCtx->state++; // PAUSE_STATE_MAIN
         pauseCtx->alpha = 255;
-        func_80115844(play, DO_ACTION_RETURN);
+        Interface_LoadBButtonDoActionLabel(play, DO_ACTION_RETURN);
     } else if (pauseCtx->switchPageTimer == 64) {
         pauseCtx->pageIndex = sPageSwitchNextPageIndex[pauseCtx->nextPageMode];
         pauseCtx->nextPageMode = (pauseCtx->pageIndex * 2) + 1;
@@ -2897,10 +2897,8 @@ void KaleidoScope_Update(PlayState* play) {
             DmaMgr_SendRequest0(pauseCtx->iconItemLangSegment, SEGMENT_ROM_START(icon_item_jpn_static), size2);
 
             pauseCtx->nameSegment = (void*)ALIGN16((uintptr_t)pauseCtx->iconItemLangSegment + size2);
-            func_8011552C(play, DO_ACTION_INFO);
-
-            //! note: `worldMapArea` never set to a value other than 0
-            if (((void)0, gSaveContext.worldMapArea) < 22) {
+            Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
+            if (((void)0, gSaveContext.worldMapArea) < 0x16) {
                 Kaleido_LoadMapNameStaticLarge(pauseCtx->nameSegment + 0x400, ((void)0, gSaveContext.worldMapArea));
             }
 
@@ -2945,7 +2943,7 @@ void KaleidoScope_Update(PlayState* play) {
                 case PAUSE_MAIN_STATE_IDLE:
                     if (!pauseCtx->itemDescriptionOn &&
                         (CHECK_BTN_ALL(input->press.button, BTN_START) || CHECK_BTN_ALL(input->press.button, BTN_B))) {
-                        func_8011552C(play, DO_ACTION_NONE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                         pauseCtx->state = PAUSE_STATE_UNPAUSE_SETUP;
                         sPauseMenuVerticalOffset = -6240.0f;
                         Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
@@ -2979,7 +2977,7 @@ void KaleidoScope_Update(PlayState* play) {
                     if (CHECK_BTN_ALL(input->press.button, BTN_START) || CHECK_BTN_ALL(input->press.button, BTN_B)) {
                         // Abort having the player play the song and close the pause menu
                         AudioOcarina_SetInstrument(OCARINA_INSTRUMENT_OFF);
-                        func_8011552C(play, DO_ACTION_NONE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                         pauseCtx->state = PAUSE_STATE_UNPAUSE_SETUP;
                         sPauseMenuVerticalOffset = -6240.0f;
                         Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
@@ -3015,7 +3013,7 @@ void KaleidoScope_Update(PlayState* play) {
                 case PAUSE_MAIN_STATE_IDLE_CURSOR_ON_SONG:
                     if (CHECK_BTN_ALL(input->press.button, BTN_START) || CHECK_BTN_ALL(input->press.button, BTN_B)) {
                         AudioOcarina_SetInstrument(OCARINA_INSTRUMENT_OFF);
-                        func_8011552C(play, DO_ACTION_NONE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                         pauseCtx->state = PAUSE_STATE_UNPAUSE_SETUP;
                         sPauseMenuVerticalOffset = -6240.0f;
                         Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
@@ -3057,7 +3055,7 @@ void KaleidoScope_Update(PlayState* play) {
                 case PAUSE_SAVEPROMPT_STATE_1:
                     if (CHECK_BTN_ALL(input->press.button, BTN_A) || CHECK_BTN_ALL(input->press.button, BTN_CUP)) {
                         if (pauseCtx->promptChoice != PAUSE_PROMPT_YES) {
-                            func_8011552C(play, DO_ACTION_NONE);
+                            Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                             pauseCtx->savePromptState = PAUSE_SAVEPROMPT_STATE_RETURN_TO_MENU;
                         } else {
                             Audio_PlaySfx(NA_SE_SY_PIECE_OF_HEART);
@@ -3075,13 +3073,13 @@ void KaleidoScope_Update(PlayState* play) {
                             sDelayTimer = 90;
                         }
                     } else if (CHECK_BTN_ALL(input->press.button, BTN_START)) {
-                        func_8011552C(play, DO_ACTION_NONE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                         pauseCtx->savePromptState = PAUSE_SAVEPROMPT_STATE_3;
                         sPauseMenuVerticalOffset = -6240.0f;
                         D_8082B90C = pauseCtx->roll;
                         Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
                     } else if (CHECK_BTN_ALL(input->press.button, BTN_B)) {
-                        func_8011552C(play, DO_ACTION_NONE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                         pauseCtx->savePromptState = PAUSE_SAVEPROMPT_STATE_RETURN_TO_MENU;
                         D_8082B90C = pauseCtx->roll;
                     }
@@ -3096,7 +3094,7 @@ void KaleidoScope_Update(PlayState* play) {
                 case PAUSE_SAVEPROMPT_STATE_5:
                     if (CHECK_BTN_ALL(input->press.button, BTN_B) || CHECK_BTN_ALL(input->press.button, BTN_A) ||
                         CHECK_BTN_ALL(input->press.button, BTN_START) || (--sDelayTimer == 0)) {
-                        func_8011552C(play, DO_ACTION_NONE);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                         pauseCtx->savePromptState = PAUSE_SAVEPROMPT_STATE_3;
                         sPauseMenuVerticalOffset = -6240.0f;
                         D_8082B90C = pauseCtx->roll;
@@ -3139,7 +3137,7 @@ void KaleidoScope_Update(PlayState* play) {
                         pauseCtx->roll = -314.0f;
                         pauseCtx->itemPageRoll = pauseCtx->mapPageRoll = pauseCtx->questPageRoll =
                             pauseCtx->maskPageRoll = 0.0f;
-                        func_8011552C(play, DO_ACTION_INFO);
+                        Interface_SetAButtonDoAction(play, DO_ACTION_INFO);
                         gSaveContext.buttonStatus[EQUIP_SLOT_B] =
                             gPageSwitchNextButtonStatus[pauseCtx->pageIndex + 1][0];
                         gSaveContext.buttonStatus[EQUIP_SLOT_C_LEFT] =
@@ -3450,7 +3448,7 @@ void KaleidoScope_Update(PlayState* play) {
             DmaMgr_SendRequest0(pauseCtx->iconItemLangSegment, SEGMENT_ROM_START(icon_item_jpn_static), size2);
 
             pauseCtx->nameSegment = (void*)ALIGN16((uintptr_t)pauseCtx->iconItemLangSegment + size2);
-            func_8011552C(play, DO_ACTION_WARP);
+            Interface_SetAButtonDoAction(play, DO_ACTION_WARP);
             worldMapCursorPoint = pauseCtx->cursorPoint[PAUSE_WORLD_MAP];
             Kaleido_LoadMapNameStatic(pauseCtx->nameSegment, worldMapCursorPoint);
 
@@ -3486,7 +3484,7 @@ void KaleidoScope_Update(PlayState* play) {
 
         case PAUSE_STATE_OWLWARP_SELECT:
             if (CHECK_BTN_ALL(input->press.button, BTN_START) || CHECK_BTN_ALL(input->press.button, BTN_B)) {
-                func_8011552C(play, DO_ACTION_NONE);
+                Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                 pauseCtx->state = PAUSE_STATE_OWLWARP_6;
                 sPauseMenuVerticalOffset = -6240.0f;
                 Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
@@ -3506,7 +3504,7 @@ void KaleidoScope_Update(PlayState* play) {
                 msgCtx->msgLength = 0;
                 msgCtx->msgMode = MSGMODE_NONE;
                 if (msgCtx->choiceIndex == 0) {
-                    func_8011552C(play, DO_ACTION_NONE);
+                    Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                     pauseCtx->state = PAUSE_STATE_OWLWARP_6;
                     sPauseMenuVerticalOffset = -6240.0f;
                     Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
@@ -3514,7 +3512,7 @@ void KaleidoScope_Update(PlayState* play) {
                     Audio_PlaySfx(NA_SE_SY_DECIDE);
                 } else {
                     pauseCtx->state = PAUSE_STATE_OWLWARP_SELECT;
-                    func_8011552C(play, DO_ACTION_WARP);
+                    Interface_SetAButtonDoAction(play, DO_ACTION_WARP);
                     Audio_PlaySfx(NA_SE_SY_MESSAGE_PASS);
                 }
             } else if (CHECK_BTN_ALL(input->press.button, BTN_B)) {
@@ -3524,8 +3522,8 @@ void KaleidoScope_Update(PlayState* play) {
                 Audio_PlaySfx(NA_SE_SY_MESSAGE_PASS);
             } else if (CHECK_BTN_ALL(input->press.button, BTN_START)) {
                 msgCtx->msgLength = 0;
-                msgCtx->msgMode = MSGMODE_NONE;
-                func_8011552C(play, DO_ACTION_NONE);
+                msgCtx->msgMode = 0;
+                Interface_SetAButtonDoAction(play, DO_ACTION_NONE);
                 pauseCtx->state = PAUSE_STATE_OWLWARP_6;
                 sPauseMenuVerticalOffset = -6240.0f;
                 Audio_PlaySfx_PauseMenuOpenOrClose(SFX_PAUSE_MENU_CLOSE);
@@ -3604,9 +3602,9 @@ void KaleidoScope_Update(PlayState* play) {
             MsgEvent_SendNullTask();
             func_80143324(play, &play->skyboxCtx, play->skyboxId);
 
-            if ((msgCtx->msgMode != MSGMODE_NONE) && (msgCtx->currentTextId == 0xFF)) {
-                func_80115844(play, DO_ACTION_STOP);
-                func_8011552C(play, DO_ACTION_STOP);
+            if ((msgCtx->msgMode != 0) && (msgCtx->currentTextId == 0xFF)) {
+                Interface_LoadBButtonDoActionLabel(play, DO_ACTION_STOP);
+                Interface_SetAButtonDoAction(play, DO_ACTION_STOP);
                 Interface_SetHudVisibility(HUD_VISIBILITY_A_B_C);
             } else {
                 interfaceCtx->unk_222 = interfaceCtx->unk_224 = 0;
diff --git a/tools/disasm/functions.txt b/tools/disasm/functions.txt
index 62a0a8699..a9bda38aa 100644
--- a/tools/disasm/functions.txt
+++ b/tools/disasm/functions.txt
@@ -2124,12 +2124,12 @@
     0x80114FD0:("Inventory_UpdateBottleItem",),
     0x80115130:("Inventory_ConsumeFairy",),
     0x801152B8:("Inventory_UpdateItem",),
-    0x801153C8:("func_801153C8",),
-    0x80115428:("func_80115428",),
-    0x8011552C:("func_8011552C",),
-    0x801155B4:("func_801155B4",),
-    0x80115764:("func_80115764",),
-    0x80115844:("func_80115844",),
+    0x801153C8:("Interface_MemSetZeroed",),
+    0x80115428:("Interface_LoadAButtonDoActionLabel",),
+    0x8011552C:("Interface_SetAButtonDoAction",),
+    0x801155B4:("Interface_SetBButtonDoAction",),
+    0x80115764:("Interface_SetTatlCall",),
+    0x80115844:("Interface_LoadBButtonDoActionLabel",),
     0x80115908:("Health_ChangeBy",),
     0x801159C0:("Health_GiveHearts",),
     0x801159EC:("Rupees_ChangeBy",),
@@ -2212,7 +2212,7 @@
     0x80123DC0:("func_80123DC0",),
     0x80123E90:("func_80123E90",),
     0x80123F14:("func_80123F14",),
-    0x80123F2C:("func_80123F2C",),
+    0x80123F2C:("Player_SetBButtonAmmo",),
     0x80123F48:("Player_IsBurningStickInRange",),
     0x80124020:("Player_GetStrength",),
     0x8012403C:("Player_GetMask",),
diff --git a/tools/disasm/variables.txt b/tools/disasm/variables.txt
index 2c93781db..d6cfd8e41 100644
--- a/tools/disasm/variables.txt
+++ b/tools/disasm/variables.txt
@@ -1122,8 +1122,8 @@
     0x801BFCE4:("sTimerStateTimer","UNK_TYPE4","",0x4),
     0x801BFCE8:("sTimerDigits","u16","[8]",0x10),
     0x801BFCF8:("sTimerBeepSfxSeconds","UNK_TYPE4","",0x4),
-    0x801BFCFC:("D_801BFCFC","UNK_TYPE4","",0x4),
-    0x801BFD0C:("D_801BFD0C","UNK_TYPE4","",0x4),
+    0x801BFCFC:("sTimerDigitsOffsetX","UNK_TYPE4","",0x4),
+    0x801BFD0C:("sTimerDigitsWidth","UNK_TYPE4","",0x4),
     0x801BFD1C:("sRupeeDigitsFirst","UNK_TYPE1","",0x1),
     0x801BFD24:("sRupeeDigitsCount","UNK_TYPE1","",0x1),
     0x801BFD2C:("sRupeeCounterIconPrimColors","UNK_TYPE1","",0x1),
@@ -11240,7 +11240,7 @@
     0x80A4334A:("sDayMessages1","s16","[3]",0x6),
     0x80A43352:("sNightMessages2","s16","[3]",0x6),
     0x80A4335A:("sDayMessages2","s16","[3]",0x6),
-    0x80A43364:("D_80A43364","u16","[2]",0x4),
+    0x80A43364:("sDayNightTransitionTimes","u16","[2]",0x4),
     0x80A434D0:("sCsIdList","s16","[2]",0x4),
     0x80A434D4:("sCurCsId","s16","",0x2),
     0x80A449E0:("En_Bat_InitVars","ActorInit","",0x1),
diff --git a/tools/sizes/code_functions.csv b/tools/sizes/code_functions.csv
index 1bc8891b9..a7e863f8c 100644
--- a/tools/sizes/code_functions.csv
+++ b/tools/sizes/code_functions.csv
@@ -1638,12 +1638,12 @@ asm/non_matchings/code/z_parameter/Inventory_HasItemInBottle.s,Inventory_HasItem
 asm/non_matchings/code/z_parameter/Inventory_UpdateBottleItem.s,Inventory_UpdateBottleItem,0x80114FD0,0x58
 asm/non_matchings/code/z_parameter/Inventory_ConsumeFairy.s,Inventory_ConsumeFairy,0x80115130,0x62
 asm/non_matchings/code/z_parameter/Inventory_UpdateItem.s,Inventory_UpdateItem,0x801152B8,0x44
-asm/non_matchings/code/z_parameter/func_801153C8.s,func_801153C8,0x801153C8,0x18
-asm/non_matchings/code/z_parameter/func_80115428.s,func_80115428,0x80115428,0x41
-asm/non_matchings/code/z_parameter/func_8011552C.s,func_8011552C,0x8011552C,0x22
-asm/non_matchings/code/z_parameter/func_801155B4.s,func_801155B4,0x801155B4,0x6C
-asm/non_matchings/code/z_parameter/func_80115764.s,func_80115764,0x80115764,0x38
-asm/non_matchings/code/z_parameter/func_80115844.s,func_80115844,0x80115844,0x31
+asm/non_matchings/code/z_parameter/Interface_MemSetZeroed.s,Interface_MemSetZeroed,0x801153C8,0x18
+asm/non_matchings/code/z_parameter/Interface_LoadAButtonDoActionLabel.s,Interface_LoadAButtonDoActionLabel,0x80115428,0x41
+asm/non_matchings/code/z_parameter/Interface_SetAButtonDoAction.s,Interface_SetAButtonDoAction,0x8011552C,0x22
+asm/non_matchings/code/z_parameter/Interface_SetBButtonDoAction.s,Interface_SetBButtonDoAction,0x801155B4,0x6C
+asm/non_matchings/code/z_parameter/Interface_SetTatlCall.s,Interface_SetTatlCall,0x80115764,0x38
+asm/non_matchings/code/z_parameter/Interface_LoadBButtonDoActionLabel.s,Interface_LoadBButtonDoActionLabel,0x80115844,0x31
 asm/non_matchings/code/z_parameter/Health_ChangeBy.s,Health_ChangeBy,0x80115908,0x2E
 asm/non_matchings/code/z_parameter/Health_GiveHearts.s,Health_GiveHearts,0x801159C0,0xB
 asm/non_matchings/code/z_parameter/Rupees_ChangeBy.s,Rupees_ChangeBy,0x801159EC,0xA
@@ -1726,7 +1726,7 @@ asm/non_matchings/code/z_player_lib/Player_Untarget.s,Player_Untarget,0x80123DA4
 asm/non_matchings/code/z_player_lib/func_80123DC0.s,func_80123DC0,0x80123DC0,0x34
 asm/non_matchings/code/z_player_lib/func_80123E90.s,func_80123E90,0x80123E90,0x21
 asm/non_matchings/code/z_player_lib/func_80123F14.s,func_80123F14,0x80123F14,0x6
-asm/non_matchings/code/z_player_lib/func_80123F2C.s,func_80123F2C,0x80123F2C,0x7
+asm/non_matchings/code/z_player_lib/Player_SetBButtonAmmo.s,Player_SetBButtonAmmo,0x80123F2C,0x7
 asm/non_matchings/code/z_player_lib/Player_IsBurningStickInRange.s,Player_IsBurningStickInRange,0x80123F48,0x36
 asm/non_matchings/code/z_player_lib/Player_GetStrength.s,Player_GetStrength,0x80124020,0x7
 asm/non_matchings/code/z_player_lib/Player_GetMask.s,Player_GetMask,0x8012403C,0x4