diff --git a/enhancements/debug_box.patch b/enhancements/debug_box.patch
index f51cedfb..2ec23b9f 100644
--- a/enhancements/debug_box.patch
+++ b/enhancements/debug_box.patch
@@ -9,7 +9,7 @@ index af9d0156..c68a7f6e 100644
 +#include "debug_box.h"
  
  struct SpawnInfo gPlayerSpawnInfos[1];
- struct GraphNode *D_8033A160[0x100];
+ struct GraphNode *gGraphNodePointers[0x100];
 @@ -363,6 +364,8 @@ void render_game(void) {
      if (gCurrentArea != NULL && !gWarpTransition.pauseRendering) {
          geo_process_root(gCurrentArea->unk04, D_8032CE74, D_8032CE78, gFBSetColor);
diff --git a/include/config.h b/include/config.h
index fd3eda0a..828261c4 100644
--- a/include/config.h
+++ b/include/config.h
@@ -64,6 +64,8 @@
 //#define SKIP_TITLE_SCREEN
 // Uncomment this if you want to keep the mario head and not skip it
 //#define KEEP_MARIO_HEAD
+// Number of possible unique model ID's (keep it higher than 256)
+#define MODEL_ID_COUNT 0x10000
 
 /* Coordinate overflow fix setting: 
  * Scales the world down by this factor, increasing how far you can render on
diff --git a/include/level_commands.h b/include/level_commands.h
index 1772a62b..c7804aa8 100644
--- a/include/level_commands.h
+++ b/include/level_commands.h
@@ -210,17 +210,19 @@
     CMD_BBH(0x20, 0x04, 0x0000)
 
 #define LOAD_MODEL_FROM_DL(model, dl, layer) \
-    CMD_BBH(0x21, 0x0C, 0), \
+    CMD_BBH(0x21, 0x10, 0), \
     CMD_PTR(dl), \
-    CMD_HH(layer, model)
+    CMD_W(layer), \
+    CMD_W(model)
 
 #define LOAD_MODEL_FROM_GEO(model, geo) \
-    CMD_BBH(0x22, 0x08, model), \
-    CMD_PTR(geo)
+    CMD_BBH(0x22, 0x0C, 0), \
+    CMD_PTR(geo), \
+    CMD_W(model)
 
 // unk8 is float, but doesn't really matter since CMD23 is unused
 #define CMD23(model, unk4, unk8) \
-    CMD_BBH(0x22, 0x08, model), \
+    CMD_BBH(0x22, 0x08, 0), \
     CMD_PTR(unk4), \
     CMD_W(unk8)
 
@@ -229,7 +231,7 @@
     CMD_HHHHHH(posX, posY, posZ, angleX, angleY, angleZ), \
     CMD_W(behParam), \
     CMD_PTR(beh), \
-    CMD_HH(0, model)
+    CMD_W(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)
@@ -238,7 +240,7 @@
     CMD_BBH(0x25, 0x10, 0), \
     CMD_W(behArg), \
     CMD_PTR(beh), \
-    CMD_HH(0, model)
+    CMD_W(model)
 
 #define WARP_NODE(id, destLevel, destArea, destNode, flags) \
     CMD_BBBB(0x26, 0x08, id, destLevel), \
diff --git a/include/types.h b/include/types.h
index 475655cf..5548eab8 100644
--- a/include/types.h
+++ b/include/types.h
@@ -54,7 +54,7 @@ typedef s16 Trajectory;
 typedef s16 PaintingData;
 typedef uintptr_t BehaviorScript;
 typedef u8 Texture;
-typedef u16 ModelID;
+typedef u32 ModelID;
 
 enum SpTaskState {
     SPTASK_STATE_NOT_STARTED,
diff --git a/sm64.ld b/sm64.ld
index 32537a49..976b232d 100755
--- a/sm64.ld
+++ b/sm64.ld
@@ -231,7 +231,9 @@ SECTIONS
    __mainPoolSize = RAM_END - .;
 
    __expansionRamStart = 0x80400000;
-   ASSERT((. <= __expansionRamStart), "Error: RDRAM expanded into Expansion RAM, despite Expansion RAM not being defined.")
+   #ifndef USE_EXT_RAM
+      ASSERT((. <= __expansionRamStart), "Error: RDRAM expanded into Expansion RAM, despite Expansion RAM not being defined.")
+   #endif
 
 
    BEGIN_SEG(entry, 0x10000000)
diff --git a/src/engine/level_script.c b/src/engine/level_script.c
index daeff54c..24c83bb0 100644
--- a/src/engine/level_script.c
+++ b/src/engine/level_script.c
@@ -375,11 +375,11 @@ static void level_cmd_end_area(void) {
 }
 
 static void level_cmd_load_model_from_dl(void) {
-    ModelID model = CMD_GET(ModelID, 0xA);
-    s16 layer = CMD_GET(u16, 0x8);
+    ModelID model = CMD_GET(ModelID, 0xC);
+    s16 layer = CMD_GET(u32, 0x8);
     void *dl_ptr = CMD_GET(void *, 4);
 
-    if (model < 65536) {
+    if (model < MODEL_ID_COUNT) {
         gLoadedGraphNodes[model] =
             (struct GraphNode *) init_graph_node_display_list(sLevelPool, 0, layer, dl_ptr);
     }
@@ -388,11 +388,11 @@ static void level_cmd_load_model_from_dl(void) {
 }
 
 static void level_cmd_load_model_from_geo(void) {
-    ModelID arg0 = CMD_GET(ModelID, 2);
-    void *arg1 = CMD_GET(void *, 4);
+    ModelID model = CMD_GET(ModelID, 8);
+    void *geo = CMD_GET(void *, 4);
 
-    if (arg0 < 65536) {
-        gLoadedGraphNodes[arg0] = process_geo_layout(sLevelPool, arg1);
+    if (model < MODEL_ID_COUNT) {
+        gLoadedGraphNodes[model] = process_geo_layout(sLevelPool, geo);
     }
 
     sCurrentCmd = CMD_NEXT;
@@ -410,7 +410,7 @@ static void level_cmd_23(void) {
     // load an f32, but using an integer load instruction for some reason (hence the union)
     arg2.i = CMD_GET(s32, 8);
 
-    if (model < 65536) {
+    if (model < MODEL_ID_COUNT) {
         // 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(ModelID, 0xE)];
+    gMarioSpawnInfo->unk18 = gLoadedGraphNodes[CMD_GET(ModelID, 0xC)];
     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(ModelID, 0x1A);
+        model = CMD_GET(ModelID, 0x18);
         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 dafadf13..3298ef98 100644
--- a/src/game/area.c
+++ b/src/game/area.c
@@ -1,5 +1,6 @@
 #include <PR/ultratypes.h>
 
+#include "config.h"
 #include "prevent_bss_reordering.h"
 #include "area.h"
 #include "sm64.h"
@@ -23,7 +24,7 @@
 #include "level_table.h"
 
 struct SpawnInfo gPlayerSpawnInfos[1];
-struct GraphNode *D_8033A160[0x10000];
+struct GraphNode *gGraphNodePointers[MODEL_ID_COUNT];
 struct Area gAreaData[8];
 
 struct WarpTransition gWarpTransition;
@@ -36,7 +37,7 @@ s16 gPauseScreenMode;
 s16 gSaveOptSelectIndex;
 
 struct SpawnInfo *gMarioSpawnInfo = &gPlayerSpawnInfos[0];
-struct GraphNode **gLoadedGraphNodes = D_8033A160;
+struct GraphNode **gLoadedGraphNodes = gGraphNodePointers;
 struct Area *gAreas = gAreaData;
 struct Area *gCurrentArea = NULL;
 struct CreditsEntry *gCurrCreditsEntry = NULL;
diff --git a/src/game/area.h b/src/game/area.h
index d746caa7..fa6c8e1b 100644
--- a/src/game/area.h
+++ b/src/game/area.h
@@ -120,7 +120,7 @@ struct WarpTransition
 
 extern struct GraphNode **gLoadedGraphNodes;
 extern struct SpawnInfo gPlayerSpawnInfos[];
-extern struct GraphNode *D_8033A160[];
+extern struct GraphNode *gGraphNodePointers[MODEL_ID_COUNT];
 extern struct Area gAreaData[];
 extern struct WarpTransition gWarpTransition;
 extern s16 gCurrCourseNum;