diff --git a/LEGO1/lego/sources/anim/legoanim.cpp b/LEGO1/lego/sources/anim/legoanim.cpp
index 5cae74c3..83c7ffb5 100644
--- a/LEGO1/lego/sources/anim/legoanim.cpp
+++ b/LEGO1/lego/sources/anim/legoanim.cpp
@@ -406,6 +406,20 @@ LegoResult LegoAnimNodeData::Write(LegoStorage* p_storage)
 	return SUCCESS;
 }
 
+// STUB: LEGO1 0x100a03c0
+LegoResult LegoAnimNodeData::FUN_100a03c0(LegoFloat p_time, Matrix4& p_matrix)
+{
+	// TODO
+	return SUCCESS;
+}
+
+// STUB: LEGO1 0x100a0990
+LegoBool LegoAnimNodeData::FUN_100a0990(LegoFloat p_time)
+{
+	// TODO
+	return TRUE;
+}
+
 // FUNCTION: LEGO1 0x100a0b30
 LegoAnim::LegoAnim()
 {
diff --git a/LEGO1/lego/sources/anim/legoanim.h b/LEGO1/lego/sources/anim/legoanim.h
index ce8326d0..e2a1b5c7 100644
--- a/LEGO1/lego/sources/anim/legoanim.h
+++ b/LEGO1/lego/sources/anim/legoanim.h
@@ -4,6 +4,7 @@
 #include "decomp.h"
 #include "misc/legostorage.h"
 #include "misc/legotree.h"
+#include "realtime/matrix.h"
 
 // SIZE 0x08
 class LegoAnimKey {
@@ -86,6 +87,14 @@ class LegoAnimNodeData : public LegoTreeNodeData {
 	LegoResult Read(LegoStorage* p_storage) override;  // vtable+0x04
 	LegoResult Write(LegoStorage* p_storage) override; // vtable+0x08
 
+	LegoResult FUN_100a03c0(LegoFloat p_time, Matrix4& p_matrix);
+	LegoBool FUN_100a0990(LegoFloat p_time);
+
+	const LegoChar* GetName() { return m_name; }
+
+	LegoResult FUN_100a03c0(LegoTime p_time, Matrix4& p_matrix) { return FUN_100a03c0((LegoFloat) p_time, p_matrix); }
+	LegoBool FUN_100a0990(LegoTime p_time) { return FUN_100a0990((LegoFloat) p_time); }
+
 	// SYNTHETIC: LEGO1 0x1009fd80
 	// LegoAnimNodeData::`scalar deleting destructor'
 
diff --git a/LEGO1/lego/sources/roi/legoroi.cpp b/LEGO1/lego/sources/roi/legoroi.cpp
index 70f899aa..7cfc13aa 100644
--- a/LEGO1/lego/sources/roi/legoroi.cpp
+++ b/LEGO1/lego/sources/roi/legoroi.cpp
@@ -1,5 +1,6 @@
 #include "legoroi.h"
 
+#include "anim/legoanim.h"
 #include "geom/legobox.h"
 #include "geom/legosphere.h"
 #include "legolod.h"
@@ -54,6 +55,11 @@ const char* g_unk0x10101390[] = {"rcuser", "jsuser", "dunebugy", "chtrblad", "ch
 // GLOBAL: LEGO1 0x101013ac
 ROIHandler g_unk0x101013ac = NULL;
 
+// FUNCTION: LEGO1 0x100a81b0
+void LegoROI::FUN_100a81b0(const LegoChar* p_error, const LegoChar* p_name)
+{
+}
+
 // FUNCTION: LEGO1 0x100a81c0
 void LegoROI::configureLegoROI(int p_roiConfig)
 {
@@ -328,11 +334,88 @@ LegoResult LegoROI::Read(
 	return result;
 }
 
-// STUB: LEGO1 0x100a90f0
+// FUNCTION: LEGO1 0x100a8cb0
+LegoResult LegoROI::FUN_100a8cb0(LegoAnimNodeData* p_data, LegoTime p_time, Matrix4& p_matrix)
+{
+	p_matrix.SetIdentity();
+	p_data->FUN_100a03c0(p_time, p_matrix);
+	return SUCCESS;
+}
+
+// FUNCTION: LEGO1 0x100a8ce0
+LegoROI* LegoROI::FUN_100a8ce0(const LegoChar* p_name, LegoROI* p_roi)
+{
+	CompoundObject::iterator it;
+	const LegoChar* name = p_roi->GetName();
+
+	if (name != NULL && *name != '\0' && !strcmpi(name, p_name)) {
+		return p_roi;
+	}
+
+	CompoundObject* comp = p_roi->comp;
+	if (comp != NULL) {
+		for (it = comp->begin(); it != comp->end(); it++) {
+			LegoROI* roi = (LegoROI*) *it;
+			name = roi->GetName();
+
+			if (name != NULL && *name != '\0' && !strcmpi(name, p_name)) {
+				return roi;
+			}
+		}
+
+		for (it = comp->begin(); it != comp->end(); it++) {
+			LegoROI* roi = FUN_100a8ce0(p_name, (LegoROI*) *it);
+
+			if (roi != NULL) {
+				return roi;
+			}
+		}
+	}
+
+	return NULL;
+}
+
+// FUNCTION: LEGO1 0x100a8da0
+LegoResult LegoROI::FUN_100a8da0(LegoTreeNode* p_node, const Matrix4& p_matrix, LegoTime p_time, LegoROI* p_roi)
+{
+	MxMatrix mat;
+	LegoAnimNodeData* data = (LegoAnimNodeData*) p_node->GetData();
+	const LegoChar* name = data->GetName();
+	LegoROI* roi = FUN_100a8ce0(name, p_roi);
+
+	if (roi == NULL) {
+		roi = FUN_100a8ce0(name, this);
+	}
+
+	if (roi != NULL) {
+		FUN_100a8cb0(data, p_time, mat);
+		roi->m_local2world.Product(mat, p_matrix);
+		roi->VTable0x1c();
+
+		LegoBool und = data->FUN_100a0990(p_time);
+		roi->SetUnknown0x0c(und);
+
+		for (LegoU32 i = 0; i < p_node->GetNumChildren(); i++) {
+			FUN_100a8da0(p_node->GetChild(i), roi->m_local2world, p_time, roi);
+		}
+	}
+	else {
+		FUN_100a81b0("%s ROI Not found\n", name);
+	}
+
+	return SUCCESS;
+}
+
+// FUNCTION: LEGO1 0x100a90f0
 LegoResult LegoROI::SetFrame(LegoAnim* p_anim, LegoTime p_time)
 {
-	// TODO
-	return SUCCESS;
+	LegoTreeNode* root = p_anim->GetRoot();
+	MxMatrix mat;
+
+	mat = m_local2world;
+	mat.SetIdentity();
+
+	return FUN_100a8da0(root, mat, p_time, this);
 }
 
 // STUB: LEGO1 0x100a9170
diff --git a/LEGO1/lego/sources/roi/legoroi.h b/LEGO1/lego/sources/roi/legoroi.h
index 2b303944..f7fc194c 100644
--- a/LEGO1/lego/sources/roi/legoroi.h
+++ b/LEGO1/lego/sources/roi/legoroi.h
@@ -11,6 +11,8 @@ class LegoTextureContainer;
 struct LegoTextureInfo;
 class LegoStorage;
 class LegoAnim;
+class LegoAnimNodeData;
+class LegoTreeNode;
 
 // VTABLE: LEGO1 0x100dbe38
 // SIZE 0x108
@@ -27,16 +29,20 @@ class LegoROI : public ViewROI {
 		LegoTextureContainer* p_textureContainer,
 		LegoStorage* p_storage
 	);
+	LegoROI* FUN_100a8ce0(const LegoChar* p_name, LegoROI* p_roi);
+	LegoResult FUN_100a8da0(LegoTreeNode* p_node, const Matrix4& p_matrix, LegoTime p_time, LegoROI* p_roi);
+	LegoResult SetFrame(LegoAnim* p_anim, LegoTime p_time);
 	LegoResult FUN_100a9170(LegoFloat, LegoFloat, LegoFloat, LegoFloat);
 	LegoResult FUN_100a9210(LegoTextureInfo* p_textureInfo);
-	LegoResult SetFrame(LegoAnim* p_anim, LegoTime p_time);
 
 	float IntrinsicImportance() const override; // vtable+0x04
 	void UpdateWorldBoundingVolumes() override; // vtable+0x18
 
 	void SetDisplayBB(int p_displayBB);
-	static void configureLegoROI(int p_roi);
 
+	static LegoResult FUN_100a8cb0(LegoAnimNodeData* p_data, LegoTime p_time, Matrix4& p_matrix);
+	static void FUN_100a81b0(const LegoChar* p_error, const LegoChar* p_name);
+	static void configureLegoROI(int p_roi);
 	static void FUN_100a9d30(ROIHandler p_func);
 	static LegoBool FUN_100a9bf0(const LegoChar* p_param, float& p_red, float& p_green, float& p_blue, float& p_alpha);
 	static LegoBool ColorAliasLookup(