diff --git a/include/level_commands.h b/include/level_commands.h
index df1b797f..1772a62b 100644
--- a/include/level_commands.h
+++ b/include/level_commands.h
@@ -210,8 +210,9 @@
     CMD_BBH(0x20, 0x04, 0x0000)
 
 #define LOAD_MODEL_FROM_DL(model, dl, layer) \
-    CMD_BBH(0x21, 0x08, ((layer << 12) | model)), \
-    CMD_PTR(dl)
+    CMD_BBH(0x21, 0x0C, 0), \
+    CMD_PTR(dl), \
+    CMD_HH(layer, model)
 
 #define LOAD_MODEL_FROM_GEO(model, geo) \
     CMD_BBH(0x22, 0x08, model), \
@@ -224,18 +225,20 @@
     CMD_W(unk8)
 
 #define OBJECT_WITH_ACTS(model, posX, posY, posZ, angleX, angleY, angleZ, behParam, beh, acts) \
-    CMD_BBBB(0x24, 0x18, acts, model), \
+    CMD_BBBB(0x24, 0x1C, acts, 0x00), \
     CMD_HHHHHH(posX, posY, posZ, angleX, angleY, angleZ), \
     CMD_W(behParam), \
-    CMD_PTR(beh)
+    CMD_PTR(beh), \
+    CMD_HH(0, model)
 
 #define OBJECT(model, posX, posY, posZ, angleX, angleY, angleZ, behParam, beh) \
     OBJECT_WITH_ACTS(model, posX, posY, posZ, angleX, angleY, angleZ, behParam, beh, 0x1F)
 
-#define MARIO(unk3, behArg, beh) \
-    CMD_BBBB(0x25, 0x0C, 0x00, unk3), \
+#define MARIO(model, behArg, beh) \
+    CMD_BBH(0x25, 0x10, 0), \
     CMD_W(behArg), \
-    CMD_PTR(beh)
+    CMD_PTR(beh), \
+    CMD_HH(0, model)
 
 #define WARP_NODE(id, destLevel, destArea, destNode, flags) \
     CMD_BBBB(0x26, 0x08, id, destLevel), \
diff --git a/include/special_presets.h b/include/special_presets.h
index e16ac6a8..a9be6ec2 100644
--- a/include/special_presets.h
+++ b/include/special_presets.h
@@ -17,7 +17,7 @@ struct SpecialPreset
     /*00*/ u8  preset_id;
     /*01*/ u8  type;      // Determines whether object is 8, 10, 12 or 14 bytes long.
     /*02*/ u8  defParam;  // Default parameter, only used when type is SPTYPE_DEF_PARAM_AND_YROT
-    /*03*/ u8  model;
+    /*03*/ ModelID  model;
     /*04*/ const BehaviorScript *behavior;
 };
 
diff --git a/include/types.h b/include/types.h
index 1b7152f6..475655cf 100644
--- a/include/types.h
+++ b/include/types.h
@@ -54,6 +54,7 @@ typedef s16 Trajectory;
 typedef s16 PaintingData;
 typedef uintptr_t BehaviorScript;
 typedef u8 Texture;
+typedef u16 ModelID;
 
 enum SpTaskState {
     SPTASK_STATE_NOT_STARTED,
diff --git a/src/engine/level_script.c b/src/engine/level_script.c
index 6687ac0d..daeff54c 100644
--- a/src/engine/level_script.c
+++ b/src/engine/level_script.c
@@ -375,23 +375,23 @@ static void level_cmd_end_area(void) {
 }
 
 static void level_cmd_load_model_from_dl(void) {
-    s16 val1 = CMD_GET(s16, 2) & 0x0FFF;
-    s16 val2 = ((u16)CMD_GET(s16, 2)) >> 12;
-    void *val3 = CMD_GET(void *, 4);
+    ModelID model = CMD_GET(ModelID, 0xA);
+    s16 layer = CMD_GET(u16, 0x8);
+    void *dl_ptr = CMD_GET(void *, 4);
 
-    if (val1 < 256) {
-        gLoadedGraphNodes[val1] =
-            (struct GraphNode *) init_graph_node_display_list(sLevelPool, 0, val2, val3);
+    if (model < 65536) {
+        gLoadedGraphNodes[model] =
+            (struct GraphNode *) init_graph_node_display_list(sLevelPool, 0, layer, dl_ptr);
     }
 
     sCurrentCmd = CMD_NEXT;
 }
 
 static void level_cmd_load_model_from_geo(void) {
-    s16 arg0 = CMD_GET(s16, 2);
+    ModelID arg0 = CMD_GET(ModelID, 2);
     void *arg1 = CMD_GET(void *, 4);
 
-    if (arg0 < 256) {
+    if (arg0 < 65536) {
         gLoadedGraphNodes[arg0] = process_geo_layout(sLevelPool, arg1);
     }
 
@@ -404,13 +404,13 @@ static void level_cmd_23(void) {
         f32 f;
     } arg2;
 
-    s16 model = CMD_GET(s16, 2) & 0x0FFF;
+    ModelID model = CMD_GET(s16, 2) & 0x0FFF;
     s16 arg0H = ((u16)CMD_GET(s16, 2)) >> 12;
     void *arg1 = CMD_GET(void *, 4);
     // load an f32, but using an integer load instruction for some reason (hence the union)
     arg2.i = CMD_GET(s32, 8);
 
-    if (model < 256) {
+    if (model < 65536) {
         // GraphNodeScale has a GraphNode at the top. This
         // is being stored to the array, so cast the pointer.
         gLoadedGraphNodes[model] =
@@ -428,7 +428,7 @@ static void level_cmd_init_mario(void) {
     gMarioSpawnInfo->areaIndex = 0;
     gMarioSpawnInfo->behaviorArg = CMD_GET(u32, 4);
     gMarioSpawnInfo->behaviorScript = CMD_GET(void *, 8);
-    gMarioSpawnInfo->unk18 = gLoadedGraphNodes[CMD_GET(u8, 3)];
+    gMarioSpawnInfo->unk18 = gLoadedGraphNodes[CMD_GET(ModelID, 0xE)];
     gMarioSpawnInfo->next = NULL;
 
     sCurrentCmd = CMD_NEXT;
@@ -440,7 +440,7 @@ static void level_cmd_place_object(void) {
     struct SpawnInfo *spawnInfo;
 
     if (sCurrAreaIndex != -1 && ((CMD_GET(u8, 2) & val7) || CMD_GET(u8, 2) == 0x1F)) {
-        model = CMD_GET(u8, 3);
+        model = CMD_GET(ModelID, 0x1A);
         spawnInfo = alloc_only_pool_alloc(sLevelPool, sizeof(struct SpawnInfo));
 
         spawnInfo->startPos[0] = CMD_GET(s16, 4);
diff --git a/src/game/area.c b/src/game/area.c
index af9d0156..dafadf13 100644
--- a/src/game/area.c
+++ b/src/game/area.c
@@ -23,7 +23,7 @@
 #include "level_table.h"
 
 struct SpawnInfo gPlayerSpawnInfos[1];
-struct GraphNode *D_8033A160[0x100];
+struct GraphNode *D_8033A160[0x10000];
 struct Area gAreaData[8];
 
 struct WarpTransition gWarpTransition;
diff --git a/src/game/behavior_actions.c b/src/game/behavior_actions.c
index 03dbaa1d..940698a7 100644
--- a/src/game/behavior_actions.c
+++ b/src/game/behavior_actions.c
@@ -57,7 +57,7 @@ struct Struct8032F34C {
     s16 numBridgeSections;
     s16 bridgeRelativeStartingXorZ;
     s16 platformWidth;
-    s16 model;
+    ModelID model;
     const void *segAddr;
 };
 
@@ -73,7 +73,7 @@ struct Struct802C0DF0 {
     u8 unk0;
     u8 unk1;
     u8 unk2;
-    u8 model;
+    ModelID model;
     const BehaviorScript *behavior;
 };
 
@@ -85,7 +85,7 @@ struct Struct8032F754 {
 
 struct OpenableGrill {
     s16 halfWidth;
-    s16 modelID;
+    ModelID modelID;
     const Collision *collision;
 };
 
diff --git a/src/game/macro_special_objects.c b/src/game/macro_special_objects.c
index a0ef16ae..7f03f97a 100644
--- a/src/game/macro_special_objects.c
+++ b/src/game/macro_special_objects.c
@@ -95,7 +95,7 @@ static void spawn_macro_coin_unknown(const BehaviorScript *behavior, s16 a1[]) {
 struct LoadedPreset {
     /*0x00*/ const BehaviorScript *behavior;
     /*0x04*/ s16 param; // huh? why does the below function swap these.. just use the struct..
-    /*0x06*/ s16 model;
+    /*0x06*/ ModelID model;
 };
 
 #define MACRO_OBJ_Y_ROT 0
@@ -245,7 +245,7 @@ void spawn_special_objects(s16 areaIndex, s16 **specialObjList) {
     s16 y;
     s16 z;
     s16 extraParams[4];
-    u8 model;
+    ModelID model;
     u8 type;
     u8 presetID;
     u8 defaultParam;
diff --git a/src/game/object_helpers.h b/src/game/object_helpers.h
index 895604fc..fb2d5ae2 100644
--- a/src/game/object_helpers.h
+++ b/src/game/object_helpers.h
@@ -55,7 +55,7 @@ struct SpawnParticlesInfo
 {
     /*0x00*/ s8 behParam;
     /*0x01*/ s8 count;
-    /*0x02*/ u8 model;
+    /*0x02*/ ModelID model;
     /*0x03*/ s8 offsetY;
     /*0x04*/ s8 forwardVelBase;
     /*0x05*/ s8 forwardVelRange;
diff --git a/src/game/object_list_processor.c b/src/game/object_list_processor.c
index 8e6cf9d0..834cb59b 100644
--- a/src/game/object_list_processor.c
+++ b/src/game/object_list_processor.c
@@ -188,7 +188,7 @@ s8 sObjectListUpdateOrder[] = { OBJ_LIST_SPAWNER,
 struct ParticleProperties {
     u32 particleFlag;
     u32 activeParticleFlag;
-    u8 model;
+    ModelID model;
     const BehaviorScript *behavior;
 };