diff --git a/src/SB/Core/gc/iModel.cpp b/src/SB/Core/gc/iModel.cpp
index dd3e9b61c..7f1ba36c1 100644
--- a/src/SB/Core/gc/iModel.cpp
+++ b/src/SB/Core/gc/iModel.cpp
@@ -2,6 +2,62 @@
 
 #include <types.h>
 
+RwFrame* GetChildFrameHierarchy(RwFrame* frame, void* data)
+{
+    RpHAnimHierarchy* hierarchy = RpHAnimFrameGetHierarchy(frame);
+    if (hierarchy == 0)
+    {
+        RwFrameForAllChildren(frame, GetChildFrameHierarchy, data);
+    }
+    else
+    {
+        data = hierarchy;
+        frame = 0;
+    }
+    return frame;
+}
+
+void* GetHierarchy(RpAtomic* frame)
+{
+    void* unk_0[2];
+    unk_0[0] = 0;
+    GetChildFrameHierarchy((RwFrame*)frame, unk_0);
+    return unk_0[0];
+}
+
+RpAtomic* iModelFileNew(void* buffer, U32 size)
+{
+    RwStream* rwmem;
+    S32 unk_0 = (S32)buffer;
+    RwStreamType type;
+    RwStreamAccessType accessType;
+
+    type = (RwStreamType)3;
+    accessType = (RwStreamAccessType)1;
+
+    rwmem = RwStreamOpen(type, accessType, buffer);
+    return iModelStreamRead(rwmem);
+}
+
+void iModelUnload(RpAtomic* userdata)
+{
+    RpClump* clump;
+    RwFrame* frame = 0;
+    RwFrame* root;
+
+    clump = (RpClump*)userdata + 0x3c;
+    if ((RpClump*)userdata != 0)
+    {
+        RwFrameGetRoot((RwFrame*)userdata);
+        RwFrameDestroyHierarchy(frame);
+        userdata = 0;
+    }
+    if (clump != 0)
+    {
+        RpClumpDestroy(clump);
+    }
+}
+
 void iModelCacheAtomic(RpAtomic*)
 {
 }
diff --git a/src/SB/Core/gc/iModel.h b/src/SB/Core/gc/iModel.h
index b9ddb99f4..4be240ae0 100644
--- a/src/SB/Core/gc/iModel.h
+++ b/src/SB/Core/gc/iModel.h
@@ -6,14 +6,18 @@
 
 #include <rwcore.h>
 #include <rpworld.h>
+#include <rphanim.h>
 
 void iModelInit();
 U32 iModelNumBones(RpAtomic* model);
 S32 iModelCull(RpAtomic* model, RwMatrixTag* mat);
 S32 iModelSphereCull(xSphere* sphere);
+RpAtomic* iModelStreamRead(RwStream*);
+RpAtomic* iModelFileNew(void* buffer, U32 size);
 RpAtomic* iModelFile_RWMultiAtomic(RpAtomic* model);
 void iModelSetMaterialTexture(RpAtomic* model, void* texture);
 void iModelResetMaterial(RpAtomic* model);
+void iModelUnload(RpAtomic* userdata);
 S32 iModelCullPlusShadow(RpAtomic* model, RwMatrix* mat, xVec3* shadowVec, S32* shadowOutside);
 void iModelTagEval(RpAtomic* model, const xModelTag* tag, RwMatrixTag* mat, xVec3* dest);
 U32 iModelTagSetup(xModelTag* tag, RpAtomic* model, F32 x, F32 y, F32 z);