diff --git a/src/KingSystem/Physics/System/physCharacterControllerParam.h b/src/KingSystem/Physics/System/physCharacterControllerParam.h
index 65f6eefd..e3a733b4 100644
--- a/src/KingSystem/Physics/System/physCharacterControllerParam.h
+++ b/src/KingSystem/Physics/System/physCharacterControllerParam.h
@@ -8,31 +8,15 @@
 
 namespace ksys::phys {
 
+class CharacterFormSet;
+class CharacterController;
+class NavMeshCharacter;
 class Shape;
 struct ShapeParamObj;
 
-SEAD_ENUM(NavMeshCharacterType,
-Player,
-Horse,
-Enemy,
-Guardian,
-NPC,
-NPCGoron,
-NPCSwimmer,
-NPCGerudoPassable,
-Fish,
-Animal,
-SmallAnimal,
-DomesticAnimal,
-PoorSwimmer,
-GoodSwimmer,
-IceSwimmer,
-FireEnemy,
-WolfLink,
-GiantEnemy,
-GiantSwimmer,
-TallEnemy,
-Lynel)
+SEAD_ENUM(NavMeshCharacterType, Player, Horse, Enemy, Guardian, NPC, NPCGoron, NPCSwimmer,
+          NPCGerudoPassable, Fish, Animal, SmallAnimal, DomesticAnimal, PoorSwimmer, GoodSwimmer,
+          IceSwimmer, FireEnemy, WolfLink, GiantEnemy, GiantSwimmer, TallEnemy, Lynel)
 
 bool navMeshCharacterTypeFromText(NavMeshCharacterType& value, const sead::SafeString& text);
 
@@ -66,14 +50,12 @@ struct CharacterControllerParam : agl::utl::ParameterList, ICharacterControllerP
     int getNumForms() override { return forms.size(); }
     Shape* createShape(int form_idx, sead::Heap* heap) override;
 
-    // TODO: return type
-    void* createController(sead::Heap* heap);
+    CharacterFormSet* createFormSet(sead::Heap* heap);
     // TODO: types
-    void* createControllerState(const sead::SafeString& name, void* ctrl, void* x, bool y,
-                                sead::Heap* heap);
-    // TODO: return type
-    void* createNavMeshCharacter(const sead::SafeString& name, sead::Heap* heap,
-                                 const sead::Vector3f& scale);
+    CharacterController* createController(const sead::SafeString& name, void* ctrl, void* x, bool y,
+                                          sead::Heap* heap);
+    NavMeshCharacter* createNavMeshCharacter(const sead::SafeString& name, sead::Heap* heap,
+                                             const sead::Vector3f& scale);
 
     int findFormIdx(const sead::SafeString& form_type) const;
     bool parse(agl::utl::ResParameterList res_list, sead::Heap* heap);
diff --git a/src/KingSystem/Physics/System/physInstanceSet.cpp b/src/KingSystem/Physics/System/physInstanceSet.cpp
index 08bb59bc..d51f9a94 100644
--- a/src/KingSystem/Physics/System/physInstanceSet.cpp
+++ b/src/KingSystem/Physics/System/physInstanceSet.cpp
@@ -9,14 +9,14 @@ namespace ksys::phys {
 
 void InstanceSet::setFlag2() {
     mFlags.set(Flag::_2);
-    if (_d8 != nullptr) {
+    if (mClothSet != nullptr) {
         mFlags.set(Flag::_2);
         mFlags.set(Flag::DisableDraw);
     }
 }
 
 void InstanceSet::clothVisibleStuff() {
-    if (_d8 != nullptr) {
+    if (mClothSet != nullptr) {
         mFlags.set(Flag::DisableDraw);
     }
 }
@@ -89,8 +89,8 @@ void InstanceSet::sub_7100FBA9BC() {
         body->addToWorld();
     }
 
-    if (mCollisionController != nullptr)
-        mCollisionController->sub_7100F5EC30();
+    if (mCharacterController != nullptr)
+        mCharacterController->sub_7100F5EC30();
 }
 
 void InstanceSet::sub_7100FBACE0(phys::ContactLayer layer) {
@@ -105,8 +105,8 @@ void InstanceSet::sub_7100FBACE0(phys::ContactLayer layer) {
     if (mRagdollController != nullptr)
         mRagdollController->sub_7101221728(layer);
 
-    if (mCollisionController != nullptr)
-        mCollisionController->enableCollisionMaybe_0(layer);
+    if (mCharacterController != nullptr)
+        mCharacterController->enableCollisionMaybe_0(layer);
 }
 
 void InstanceSet::sub_7100FBAD74() {
@@ -116,8 +116,8 @@ void InstanceSet::sub_7100FBAD74() {
     if (mRagdollController != nullptr) {
         mRagdollController->sub_71012217A8();
     }
-    if (mCollisionController != nullptr) {
-        mCollisionController->sub_7100F60604();
+    if (mCharacterController != nullptr) {
+        mCharacterController->sub_7100F60604();
     }
 }
 
diff --git a/src/KingSystem/Physics/System/physInstanceSet.h b/src/KingSystem/Physics/System/physInstanceSet.h
index 2d1680e5..66eeac61 100644
--- a/src/KingSystem/Physics/System/physInstanceSet.h
+++ b/src/KingSystem/Physics/System/physInstanceSet.h
@@ -1,6 +1,8 @@
 #pragma once
 
+#include <container/seadBuffer.h>
 #include <container/seadListImpl.h>
+#include <container/seadObjArray.h>
 #include <container/seadPtrArray.h>
 #include <hostio/seadHostIONode.h>
 #include "KingSystem/ActorSystem/actActor.h"
@@ -11,21 +13,32 @@ namespace gsys {
 class Model;
 }
 
+namespace sead {
+class DirectResource;
+}
+
 namespace ksys::res {
+class Handle;
 class RagdollBlendWeight;
 class RagdollConfigList;
 }  // namespace ksys::res
 
 namespace ksys::phys {
 
+class CharacterController;
+class CharacterFormSet;
+class ClothSet;
 class CollisionInfo;
 class ContactPointInfo;
+class NavMeshCharacter;
 class ParamSet;
 class RagdollController;
 class RigidBodySet;
 class SystemGroupHandler;
+class UserTag;
 
-class CollisionController {
+// TODO: move to a separate header
+class CharacterController {
 public:
     void sub_7100F5EC30();
     void sub_7100F60604();
@@ -47,8 +60,12 @@ public:
         _80000000 = 1u << 31,
     };
 
+    InstanceSet(const sead::SafeString& actor_name, const sead::SafeString& actor_profile,
+                const ParamSet& param_set);
+    virtual ~InstanceSet();
+
     const sead::SafeString& getName() const { return mName; }
-    ParamSet* getParamSet() const { return mParamSet; }
+    const ParamSet* getParamSet() const { return mParamSet; }
 
     void setFlag2();
     void clothVisibleStuff();
@@ -73,28 +90,49 @@ public:
     s32 sub_7100FBDA2C(const sead::SafeString& name) const;
 
 private:
+    struct Unk1 {
+        u8 _0[0x48];
+    };
+
     sead::SafeString mName;
-    ParamSet* mParamSet;
+    const ParamSet* mParamSet;
     sead::TypedBitFlag<Flag> mFlags;
+    u16 _24{};
+    u16 _26{};
     gsys::Model* mModel;
     f32 mScale;
-    u8 _34[0x40 - 0x34];
+    UserTag* mUserTag;
     sead::PtrArray<RigidBodySet> mRigidBodySets;
     sead::PtrArray<CollisionInfo> mCollisionInfo;
     sead::PtrArray<ContactPointInfo> mContactPointInfo;
+    sead::Buffer<res::Handle*> mRigidBodySetResHandles;
 
-    u8 _70[0x10];
-    CollisionController* mCollisionController;
-    u8 _88[8];
-    RagdollController* mRagdollController;
-    u8 _98[0xb8 - 0x98];
+    CharacterController* mCharacterController{};
+    CharacterFormSet* mCharacterFormSet{};
+
+    RagdollController* mRagdollController{};
+    sead::Buffer<void*> _98;
+    ContactPointInfo* mRagdollContactPointInfo{};
+    res::Handle* mRagdollResHandle{};
     res::RagdollBlendWeight* mRagdollBlendWt;
     res::RagdollConfigList* mRagdollConfigList;
-    u8 _c8[0xd8 - 0xc8];
-    void* _d8;
-    u8 _e0[0x148 - 0xe0];
+
+    res::Handle* mClothResHandle{};
+    sead::DirectResource* mClothRes{};
+    ClothSet* mClothSet;
+
+    res::Handle* mSupportBoneResHandle{};
+    void* _e8{};
+    void* _f0{};
+
+    NavMeshCharacter* mNavMeshCharacter;
+    sead::Buffer<void*> _100;
+    u16 _110{};
+    sead::ObjArray<Unk1> mLinkMatricesMaybe;
+    sead::Buffer<void*> _138;
     sead::TList<RigidBody*> mList;
-    u8 _160[0x178 - 0x160];
+    sead::ListNode _160;
+    u32 _170{};
     SystemGroupHandler* _178[2];
     SystemGroupHandler* _188[2];
 };