diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 217ad762..36a7db9a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -139,7 +139,7 @@ jobs:
       run: |
         reccmp-reccmp -S CONFIGPROGRESS.SVG --svg-icon assets/config.png --target CONFIG | tee CONFIGPROGRESS.TXT
         reccmp-reccmp -S ISLEPROGRESS.SVG --svg-icon assets/isle.png --target ISLE | tee ISLEPROGRESS.TXT
-        reccmp-reccmp -S LEGO1PROGRESS.SVG -T 4345 --svg-icon assets/lego1.png --target LEGO1 | tee LEGO1PROGRESS.TXT
+        reccmp-reccmp -S LEGO1PROGRESS.SVG -T 4352 --svg-icon assets/lego1.png --target LEGO1 | tee LEGO1PROGRESS.TXT
 
     - name: Compare Accuracy With Current Master
       shell: bash
diff --git a/LEGO1/lego/sources/anim/legoanim.cpp b/LEGO1/lego/sources/anim/legoanim.cpp
index 2477a6ef..0328738b 100644
--- a/LEGO1/lego/sources/anim/legoanim.cpp
+++ b/LEGO1/lego/sources/anim/legoanim.cpp
@@ -30,8 +30,28 @@ LegoResult LegoUnknownKey::Read(LegoStorage* p_storage)
 		return result;
 	}
 
-	result = p_storage->Read(&m_z, sizeof(m_z));
-	return result == SUCCESS ? SUCCESS : result;
+	if ((result = p_storage->Read(&m_z, sizeof(m_z))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
+}
+
+// FUNCTION: LEGO1 0x1009f060
+// FUNCTION: BETA10 0x1018133f
+LegoResult LegoUnknownKey::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+
+	if ((result = LegoAnimKey::Write(p_storage)) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_z, sizeof(m_z))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
 }
 
 // FUNCTION: LEGO1 0x1009f0a0
@@ -67,6 +87,49 @@ LegoAnimScene::~LegoAnimScene()
 	}
 }
 
+// FUNCTION: LEGO1 0x1009f120
+// FUNCTION: BETA10 0x101814be
+LegoResult LegoAnimScene::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+	LegoS32 i;
+
+	if ((result = p_storage->Write(&m_unk0x00, sizeof(m_unk0x00))) != SUCCESS) {
+		return result;
+	}
+	if (m_unk0x00 != 0) {
+		for (i = 0; i < m_unk0x00; i++) {
+			if ((result = m_unk0x04[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
+	if ((result = p_storage->Write(&m_unk0x08, sizeof(m_unk0x08))) != SUCCESS) {
+		return result;
+	}
+	if (m_unk0x08 != 0) {
+		for (i = 0; i < m_unk0x08; i++) {
+			if ((result = m_unk0x0c[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
+	if ((result = p_storage->Write(&m_unk0x10, sizeof(m_unk0x10))) != SUCCESS) {
+		return result;
+	}
+	if (m_unk0x10 != 0) {
+		for (i = 0; i < m_unk0x10; i++) {
+			if ((result = m_unk0x14[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
+	return SUCCESS;
+}
+
 // FUNCTION: LEGO1 0x1009f200
 LegoResult LegoAnimScene::Read(LegoStorage* p_storage)
 {
@@ -76,8 +139,7 @@ LegoResult LegoAnimScene::Read(LegoStorage* p_storage)
 	if ((result = p_storage->Read(&m_unk0x00, sizeof(m_unk0x00))) != SUCCESS) {
 		return result;
 	}
-
-	if (m_unk0x00) {
+	if (m_unk0x00 != 0) {
 		m_unk0x04 = new LegoTranslationKey[m_unk0x00];
 		for (i = 0; i < m_unk0x00; i++) {
 			if ((result = m_unk0x04[i].Read(p_storage)) != SUCCESS) {
@@ -89,8 +151,7 @@ LegoResult LegoAnimScene::Read(LegoStorage* p_storage)
 	if ((result = p_storage->Read(&m_unk0x08, sizeof(m_unk0x08))) != SUCCESS) {
 		return result;
 	}
-
-	if (m_unk0x08) {
+	if (m_unk0x08 != 0) {
 		m_unk0x0c = new LegoTranslationKey[m_unk0x08];
 		for (i = 0; i < m_unk0x08; i++) {
 			if ((result = m_unk0x0c[i].Read(p_storage)) != SUCCESS) {
@@ -102,8 +163,7 @@ LegoResult LegoAnimScene::Read(LegoStorage* p_storage)
 	if ((result = p_storage->Read(&m_unk0x10, sizeof(m_unk0x10))) != SUCCESS) {
 		return result;
 	}
-
-	if (m_unk0x10) {
+	if (m_unk0x10 != 0) {
 		m_unk0x14 = new LegoUnknownKey[m_unk0x10];
 		for (i = 0; i < m_unk0x10; i++) {
 			if ((result = m_unk0x14[i].Read(p_storage)) != SUCCESS) {
@@ -232,14 +292,28 @@ LegoAnimKey::LegoAnimKey()
 LegoResult LegoAnimKey::Read(LegoStorage* p_storage)
 {
 	LegoResult result;
-	LegoS32 und;
+	LegoS32 timeAndFlags;
 
-	if ((result = p_storage->Read(&und, sizeof(und))) != SUCCESS) {
+	if ((result = p_storage->Read(&timeAndFlags, sizeof(timeAndFlags))) != SUCCESS) {
+		return result;
+	}
+
+	m_flags = (LegoU32) timeAndFlags >> 24;
+	m_time = timeAndFlags & 0xffffff;
+	return SUCCESS;
+}
+
+// FUNCTION: LEGO1 0x1009f950
+// FUNCTION: BETA10 0x1017e018
+LegoResult LegoAnimKey::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+	LegoS32 timeAndFlags = (LegoS32) m_time | (m_flags << 24);
+
+	if ((result = p_storage->Write(&timeAndFlags, sizeof(timeAndFlags))) != SUCCESS) {
 		return result;
 	}
 
-	m_flags = (LegoU32) und >> 24;
-	m_time = und & 0xffffff;
 	return SUCCESS;
 }
 
@@ -279,6 +353,31 @@ LegoResult LegoTranslationKey::Read(LegoStorage* p_storage)
 	return SUCCESS;
 }
 
+// FUNCTION: LEGO1 0x1009fa40
+// FUNCTION: BETA10 0x1017e1fd
+LegoResult LegoTranslationKey::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+
+	if ((result = LegoAnimKey::Write(p_storage)) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_x, sizeof(m_x))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_y, sizeof(m_y))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_z, sizeof(m_z))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
+}
+
 // FUNCTION: LEGO1 0x1009faa0
 // FUNCTION: BETA10 0x1017e2b3
 LegoRotationKey::LegoRotationKey()
@@ -321,6 +420,35 @@ LegoResult LegoRotationKey::Read(LegoStorage* p_storage)
 	return SUCCESS;
 }
 
+// FUNCTION: LEGO1 0x1009fb30
+// FUNCTION: BETA10 0x1017e3fc
+LegoResult LegoRotationKey::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+
+	if ((result = LegoAnimKey::Write(p_storage)) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_angle, sizeof(m_angle))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_x, sizeof(m_x))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_y, sizeof(m_y))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_z, sizeof(m_z))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
+}
+
 // FUNCTION: LEGO1 0x1009fba0
 LegoScaleKey::LegoScaleKey()
 {
@@ -357,6 +485,31 @@ LegoResult LegoScaleKey::Read(LegoStorage* p_storage)
 	return SUCCESS;
 }
 
+// FUNCTION: LEGO1 0x1009fc90
+// FUNCTION: BETA10 0x1017e664
+LegoResult LegoScaleKey::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+
+	if ((result = LegoAnimKey::Write(p_storage)) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_x, sizeof(m_x))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_y, sizeof(m_y))) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_z, sizeof(m_z))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
+}
+
 // FUNCTION: LEGO1 0x1009fcf0
 // FUNCTION: BETA10 0x1017e71a
 LegoAnimNodeData::LegoAnimNodeData()
@@ -400,6 +553,7 @@ LegoAnimNodeData::~LegoAnimNodeData()
 }
 
 // FUNCTION: LEGO1 0x1009fe60
+// FUNCTION: BETA10 0x1017e949
 LegoResult LegoAnimNodeData::Read(LegoStorage* p_storage)
 {
 	LegoResult result;
@@ -490,10 +644,70 @@ LegoResult LegoAnimNodeData::Read(LegoStorage* p_storage)
 	return SUCCESS;
 }
 
-// STUB: LEGO1 0x100a01e0
+// FUNCTION: LEGO1 0x100a01e0
+// FUNCTION: BETA10 0x1017ef0f
 LegoResult LegoAnimNodeData::Write(LegoStorage* p_storage)
 {
-	// TODO
+	LegoResult result;
+	LegoU32 length = 0;
+	LegoU32 i;
+
+	if (m_name != NULL) {
+		length = strlen(m_name);
+	}
+
+	if ((result = p_storage->Write(&length, sizeof(length))) != SUCCESS) {
+		return result;
+	}
+
+	if (m_name != NULL && (result = p_storage->Write(m_name, length)) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_numTranslationKeys, sizeof(m_numTranslationKeys))) != SUCCESS) {
+		return result;
+	}
+	if (m_numTranslationKeys != 0) {
+		for (i = 0; i < m_numTranslationKeys; i++) {
+			if ((result = m_translationKeys[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
+	if ((result = p_storage->Write(&m_numRotationKeys, sizeof(m_numRotationKeys))) != SUCCESS) {
+		return result;
+	}
+	if (m_numRotationKeys != 0) {
+		for (i = 0; i < m_numRotationKeys; i++) {
+			if ((result = m_rotationKeys[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
+	if ((result = p_storage->Write(&m_numScaleKeys, sizeof(m_numScaleKeys))) != SUCCESS) {
+		return result;
+	}
+	if (m_numScaleKeys != 0) {
+		for (i = 0; i < m_numScaleKeys; i++) {
+			if ((result = m_scaleKeys[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
+	if ((result = p_storage->Write(&m_numMorphKeys, sizeof(m_numMorphKeys))) != SUCCESS) {
+		return result;
+	}
+	if (m_numMorphKeys != 0) {
+		for (i = 0; i < m_numMorphKeys; i++) {
+			if ((result = m_morphKeys[i].Write(p_storage)) != SUCCESS) {
+				return result;
+			}
+		}
+	}
+
 	return SUCCESS;
 }
 
@@ -798,7 +1012,7 @@ inline LegoAnimKey& LegoAnimNodeData::GetKey(LegoU32 p_i, LegoAnimKey* p_keys, L
 LegoAnim::LegoAnim()
 {
 	m_duration = 0;
-	m_actors = NULL;
+	m_modelList = NULL;
 	m_numActors = 0;
 	m_camAnim = NULL;
 }
@@ -806,12 +1020,12 @@ LegoAnim::LegoAnim()
 // FUNCTION: LEGO1 0x100a0bc0
 LegoAnim::~LegoAnim()
 {
-	if (m_actors != NULL) {
+	if (m_modelList != NULL) {
 		for (LegoU32 i = 0; i < m_numActors; i++) {
-			delete[] m_actors[i].m_name;
+			delete[] m_modelList[i].m_name;
 		}
 
-		delete[] m_actors;
+		delete[] m_modelList;
 	}
 
 	if (m_camAnim != NULL) {
@@ -829,7 +1043,7 @@ LegoResult LegoAnim::Read(LegoStorage* p_storage, LegoS32 p_parseScene)
 		goto done;
 	}
 
-	m_actors = new LegoAnimActorEntry[length];
+	m_modelList = new LegoAnimActorEntry[length];
 	m_numActors = 0;
 
 	for (i = 0; i < length; i++) {
@@ -839,15 +1053,15 @@ LegoResult LegoAnim::Read(LegoStorage* p_storage, LegoS32 p_parseScene)
 		}
 
 		if (length) {
-			m_actors[i].m_name = new LegoChar[length + 1];
+			m_modelList[i].m_name = new LegoChar[length + 1];
 
-			if (p_storage->Read(m_actors[i].m_name, length) != SUCCESS) {
+			if (p_storage->Read(m_modelList[i].m_name, length) != SUCCESS) {
 				goto done;
 			}
 
-			m_actors[i].m_name[length] = '\0';
+			m_modelList[i].m_name[length] = '\0';
 
-			if (p_storage->Read(&m_actors[i].m_unk0x04, sizeof(m_actors[i].m_unk0x04)) != SUCCESS) {
+			if (p_storage->Read(&m_modelList[i].m_unk0x04, sizeof(m_modelList[i].m_unk0x04)) != SUCCESS) {
 				goto done;
 			}
 		}
@@ -872,41 +1086,81 @@ LegoResult LegoAnim::Read(LegoStorage* p_storage, LegoS32 p_parseScene)
 	result = LegoTree::Read(p_storage);
 
 done:
-	if (result != SUCCESS && m_actors != NULL) {
+	if (result != SUCCESS && m_modelList != NULL) {
 		for (i = 0; i < m_numActors; i++) {
-			delete[] m_actors[i].m_name;
+			delete[] m_modelList[i].m_name;
 		}
 
 		m_numActors = 0;
-		delete[] m_actors;
-		m_actors = NULL;
+		delete[] m_modelList;
+		m_modelList = NULL;
 	}
 
 	return result;
 }
 
-// STUB: LEGO1 0x100a0e30
+// FUNCTION: LEGO1 0x100a0e30
+// FUNCTION: BETA10 0x1017fe3a
 LegoResult LegoAnim::Write(LegoStorage* p_storage)
 {
-	// TODO
-	return SUCCESS;
+	LegoResult result = FAILURE;
+	LegoU32 i;
+
+	if (p_storage->Write(&m_numActors, sizeof(m_numActors)) != SUCCESS) {
+		goto done;
+	}
+
+	for (i = 0; i < m_numActors; i++) {
+		LegoU32 length = strlen(m_modelList[i].m_name);
+
+		if (p_storage->Write(&length, sizeof(length)) != SUCCESS) {
+			goto done;
+		}
+
+		if (length != 0) {
+			if (p_storage->Write(m_modelList[i].m_name, length) != SUCCESS) {
+				goto done;
+			}
+
+			if (p_storage->Write(&m_modelList[i].m_unk0x04, sizeof(m_modelList[i].m_unk0x04)) != SUCCESS) {
+				goto done;
+			}
+		}
+	}
+
+	if (p_storage->Write(&m_duration, sizeof(m_duration)) != SUCCESS) {
+		goto done;
+	}
+
+	if (m_camAnim != NULL) {
+		if (m_camAnim->Write(p_storage) != SUCCESS) {
+			goto done;
+		}
+	}
+
+	result = LegoTree::Write(p_storage);
+
+done:
+	return result;
 }
 
 // FUNCTION: LEGO1 0x100a0f20
+// FUNCTION: BETA10 0x101801fd
 const LegoChar* LegoAnim::GetActorName(LegoU32 p_index)
 {
 	if (p_index < m_numActors) {
-		return m_actors[p_index].m_name;
+		return m_modelList[p_index].m_name;
 	}
 
 	return NULL;
 }
 
 // FUNCTION: LEGO1 0x100a0f40
+// FUNCTION: BETA10 0x1018023c
 undefined4 LegoAnim::GetActorUnknown0x04(LegoU32 p_index)
 {
 	if (p_index < m_numActors) {
-		return m_actors[p_index].m_unk0x04;
+		return m_modelList[p_index].m_unk0x04;
 	}
 
 	return NULL;
@@ -928,6 +1182,26 @@ LegoResult LegoMorphKey::Read(LegoStorage* p_storage)
 		return result;
 	}
 
-	result = p_storage->Read(&m_unk0x08, sizeof(m_unk0x08));
-	return result == SUCCESS ? SUCCESS : result;
+	if ((result = p_storage->Read(&m_unk0x08, sizeof(m_unk0x08))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
+}
+
+// FUNCTION: LEGO1 0x100a0fb0
+// FUNCTION: BETA10 0x10180308
+LegoResult LegoMorphKey::Write(LegoStorage* p_storage)
+{
+	LegoResult result;
+
+	if ((result = LegoAnimKey::Write(p_storage)) != SUCCESS) {
+		return result;
+	}
+
+	if ((result = p_storage->Write(&m_unk0x08, sizeof(m_unk0x08))) != SUCCESS) {
+		return result;
+	}
+
+	return SUCCESS;
 }
diff --git a/LEGO1/lego/sources/anim/legoanim.h b/LEGO1/lego/sources/anim/legoanim.h
index f02566b1..00cbafdb 100644
--- a/LEGO1/lego/sources/anim/legoanim.h
+++ b/LEGO1/lego/sources/anim/legoanim.h
@@ -18,6 +18,7 @@ class LegoAnimKey {
 
 	LegoAnimKey();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 	LegoFloat GetTime() { return m_time; }
 
 	// The different types (LegoFloat vs. MxS32) are correct according to BETA10
@@ -49,6 +50,7 @@ class LegoTranslationKey : public LegoAnimKey {
 public:
 	LegoTranslationKey();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 	LegoFloat GetX() { return m_x; }
 	void SetX(LegoFloat p_x) { m_x = p_x; }
 	LegoFloat GetY() { return m_y; }
@@ -67,6 +69,7 @@ class LegoRotationKey : public LegoAnimKey {
 public:
 	LegoRotationKey();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 
 	// FUNCTION: BETA10 0x10073a00
 	LegoFloat GetAngle() { return m_angle; }
@@ -104,6 +107,7 @@ class LegoScaleKey : public LegoAnimKey {
 public:
 	LegoScaleKey();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 	LegoFloat GetX() { return m_x; }
 	void SetX(LegoFloat p_x) { m_x = p_x; }
 	LegoFloat GetY() { return m_y; }
@@ -122,6 +126,7 @@ class LegoMorphKey : public LegoAnimKey {
 public:
 	LegoMorphKey();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 	LegoBool GetUnknown0x08() { return m_unk0x08; }
 
 	// FUNCTION: BETA10 0x100738d0
@@ -136,6 +141,7 @@ class LegoUnknownKey : public LegoAnimKey {
 public:
 	LegoUnknownKey();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 
 	LegoFloat GetZ() { return m_z; }
 
@@ -291,6 +297,7 @@ class LegoAnimScene {
 	LegoAnimScene();
 	~LegoAnimScene();
 	LegoResult Read(LegoStorage* p_storage);
+	LegoResult Write(LegoStorage* p_storage);
 	LegoResult FUN_1009f490(LegoFloat p_time, Matrix4& p_matrix);
 
 	LegoU32 GetUnknown0x18() { return m_unk0x18; }
@@ -337,10 +344,10 @@ class LegoAnim : public LegoTree {
 	// LegoAnim::`scalar deleting destructor'
 
 protected:
-	LegoTime m_duration;          // 0x08
-	LegoAnimActorEntry* m_actors; // 0x0c
-	LegoU32 m_numActors;          // 0x10
-	LegoAnimScene* m_camAnim;     // 0x14
+	LegoTime m_duration;             // 0x08
+	LegoAnimActorEntry* m_modelList; // 0x0c
+	LegoU32 m_numActors;             // 0x10
+	LegoAnimScene* m_camAnim;        // 0x14
 
 	// FUNCTION: LEGO1 0x100a1040
 	LegoTreeNodeData* CreateData() override { return new LegoAnimNodeData(); } // vtable+0x0c