diff --git a/src/code/z_parameter.c b/src/code/z_parameter.c
index d48c0bf87..0e2fe9e75 100644
--- a/src/code/z_parameter.c
+++ b/src/code/z_parameter.c
@@ -2975,6 +2975,7 @@ void Interface_DrawAmmoCount(GlobalContext* globalCtx, s16 button, s16 alpha) {
         ammo = AMMO(i);
 
         if (i == ITEM_PICTO_BOX) {
+            // TODO: index of gBitFlags?
             if ((((void)0, gSaveContext.save.inventory.questItems) & (gBitFlags[0, QUEST_UNK_19])) == 0) {
                 ammo = 0;
             } else {
@@ -3100,8 +3101,52 @@ void func_80118084(GlobalContext* globalCtx) {
     CLOSE_DISPS(globalCtx->state.gfxCtx);
 }
 
-void func_80118890(GlobalContext* globalCtx);
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_parameter/func_80118890.s")
+void func_80118890(GlobalContext* globalCtx) {
+    InterfaceContext* interfaceCtx = &globalCtx->interfaceCtx;
+
+    OPEN_DISPS(globalCtx->state.gfxCtx);
+
+    gDPPipeSync(OVERLAY_DISP++);
+
+    // C-Left Button Icon & Ammo Count
+    if (BUTTON_ITEM_EQUIP(0, EQUIP_SLOT_C_LEFT) < 0xF0) {
+        gDPSetPrimColor(OVERLAY_DISP++, 0, 0, 255, 255, 255, interfaceCtx->cLeftAlpha);
+        gDPSetCombineMode(OVERLAY_DISP++, G_CC_MODULATEIA_PRIM, G_CC_MODULATEIA_PRIM);
+        Interface_DrawItemIconTexture(globalCtx, interfaceCtx->iconItemSegment + 0x1000, 1);
+        gDPPipeSync(OVERLAY_DISP++);
+        gDPSetCombineLERP(OVERLAY_DISP++, PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0,
+                          PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0);
+        Interface_DrawAmmoCount(globalCtx, 1, interfaceCtx->cLeftAlpha);
+    }
+
+    gDPPipeSync(OVERLAY_DISP++);
+
+    // C-Down Button Icon & Ammo Count
+    if (BUTTON_ITEM_EQUIP(0, EQUIP_SLOT_C_DOWN) < 0xF0) {
+        gDPSetPrimColor(OVERLAY_DISP++, 0, 0, 255, 255, 255, interfaceCtx->cDownAlpha);
+        gDPSetCombineMode(OVERLAY_DISP++, G_CC_MODULATEIA_PRIM, G_CC_MODULATEIA_PRIM);
+        Interface_DrawItemIconTexture(globalCtx, interfaceCtx->iconItemSegment + 0x2000, 2);
+        gDPPipeSync(OVERLAY_DISP++);
+        gDPSetCombineLERP(OVERLAY_DISP++, PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0,
+                          PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0);
+        Interface_DrawAmmoCount(globalCtx, 2, interfaceCtx->cDownAlpha);
+    }
+
+    gDPPipeSync(OVERLAY_DISP++);
+
+    // C-Right Button Icon & Ammo Count
+    if (BUTTON_ITEM_EQUIP(0, EQUIP_SLOT_C_RIGHT) < 0xF0) {
+        gDPSetPrimColor(OVERLAY_DISP++, 0, 0, 255, 255, 255, interfaceCtx->cRightAlpha);
+        gDPSetCombineMode(OVERLAY_DISP++, G_CC_MODULATEIA_PRIM, G_CC_MODULATEIA_PRIM);
+        Interface_DrawItemIconTexture(globalCtx, interfaceCtx->iconItemSegment + 0x3000, 3);
+        gDPPipeSync(OVERLAY_DISP++);
+        gDPSetCombineLERP(OVERLAY_DISP++, PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0,
+                          PRIMITIVE, ENVIRONMENT, TEXEL0, ENVIRONMENT, TEXEL0, 0, PRIMITIVE, 0);
+        Interface_DrawAmmoCount(globalCtx, 3, interfaceCtx->cRightAlpha);
+    }
+
+    CLOSE_DISPS(globalCtx->state.gfxCtx);
+}
 
 void func_80118BA4(GlobalContext* globalCtx) {
     InterfaceContext* interfaceCtx = &globalCtx->interfaceCtx;