diff --git a/config/G2ME01/splits.txt b/config/G2ME01/splits.txt
index cdc3d42..0db164f 100644
--- a/config/G2ME01/splits.txt
+++ b/config/G2ME01/splits.txt
@@ -1,3 +1,6 @@
+MetroidPrime/CEntity.cpp:
+	.text       start:0x80047E5C end:0x800484D4
+
 MetroidPrime/Player/CPlayerState.cpp:
 	.text       start:0x80084864 end:0x80086410
 
diff --git a/config/G2ME01/symbols.txt b/config/G2ME01/symbols.txt
index a896ee9..810945f 100644
--- a/config/G2ME01/symbols.txt
+++ b/config/G2ME01/symbols.txt
@@ -512,7 +512,7 @@ fn_8001C690 = .text:0x8001C690; // type:function size:0x54
 fn_8001C6E4 = .text:0x8001C6E4; // type:function size:0x130
 fn_8001C814 = .text:0x8001C814; // type:function size:0x68 align:0x4
 fn_8001C87C = .text:0x8001C87C; // type:function size:0x58
-fn_8001C8D4 = .text:0x8001C8D4; // type:function size:0x54
+__dt__Q24rstl48vector<11SConnection,Q24rstl17rmemory_allocator>Fv = .text:0x8001C8D4; // type:function size:0x54
 fn_8001C928 = .text:0x8001C928; // type:function size:0x34 align:0x4
 fn_8001C95C = .text:0x8001C95C; // type:function size:0x178
 fn_8001CAD4 = .text:0x8001CAD4; // type:function size:0x98
@@ -1340,16 +1340,16 @@ fn_800478D8 = .text:0x800478D8; // type:function size:0x1D8 align:0x4
 fn_80047AB0 = .text:0x80047AB0; // type:function size:0x100
 fn_80047BB0 = .text:0x80047BB0; // type:function size:0x1A4
 fn_80047D54 = .text:0x80047D54; // type:function size:0x108
-fn_80047E5C = .text:0x80047E5C; // type:function size:0xD8
-fn_80047F34 = .text:0x80047F34; // type:function size:0x24
-fn_80047F58 = .text:0x80047F58; // type:function size:0x10 align:0x4
+SearchForSomething__7CEntityFR13CStateManager18EScriptObjectState20EScriptObjectMessage = .text:0x80047E5C; // type:function size:0xD8
+GetAreaId__7CEntityCFv = .text:0x80047F34; // type:function size:0x24
+SetActive__7CEntityFb = .text:0x80047F58; // type:function size:0x10 align:0x4
 fn_80047F68 = .text:0x80047F68; // type:function size:0x80 align:0x4
-fn_80047FE8 = .text:0x80047FE8; // type:function size:0x4
-fn_80047FEC = .text:0x80047FEC; // type:function size:0x4 align:0x4
-fn_80047FF0 = .text:0x80047FF0; // type:function size:0x110
-fn_80048100 = .text:0x80048100; // type:function size:0x174 align:0x4
-fn_80048274 = .text:0x80048274; // type:function size:0x64
-fn_800482D8 = .text:0x800482D8; // type:function size:0xCC
+Think__7CEntityFfR13CStateManager = .text:0x80047FE8; // type:function size:0x4
+PreThink__7CEntityFfR13CStateManager = .text:0x80047FEC; // type:function size:0x4 align:0x4
+SendScriptMsgs__7CEntityF18EScriptObjectStateR13CStateManager20EScriptObjectMessage = .text:0x80047FF0; // type:function size:0x110
+AcceptScriptMsg__7CEntityFR13CStateManagerR10CScriptMsg = .text:0x80048100; // type:function size:0x174 align:0x4
+__dt__7CEntityFv = .text:0x80048274; // type:function size:0x64
+__ct__7CEntityF9TUniqueIdRC11CEntityInfobRCQ24rstl66basic_string<c,Q24rstl14char_traits<c>,Q24rstl17rmemory_allocator> = .text:0x800482D8; // type:function size:0xCC
 fn_800483A4 = .text:0x800483A4; // type:function size:0x130
 fn_800484D4 = .text:0x800484D4; // type:function size:0x88
 fn_8004855C = .text:0x8004855C; // type:function size:0x88 align:0x4
@@ -12989,7 +12989,7 @@ fn_802CE278 = .text:0x802CE278; // type:function size:0x54
 fn_802CE2CC = .text:0x802CE2CC; // type:function size:0x34
 fn_802CE300 = .text:0x802CE300; // type:function size:0x4C
 fn_802CE34C = .text:0x802CE34C; // type:function size:0x3C align:0x4
-fn_802CE388 = .text:0x802CE388; // type:function size:0x64
+Free__7CMemoryFPCv = .text:0x802CE388; // type:function size:0x64
 fn_802CE3EC = .text:0x802CE3EC; // type:function size:0xD0
 fn_802CE4BC = .text:0x802CE4BC; // type:function size:0x94
 fn_802CE550 = .text:0x802CE550; // type:function size:0x3C align:0x4
@@ -17933,7 +17933,7 @@ lbl_803B1A40 = .data:0x803B1A40; // type:object size:0x90
 jumptable_803B1AD0 = .data:0x803B1AD0; // type:object size:0x54 scope:local
 lbl_803B1B24 = .data:0x803B1B24; // type:object size:0xC
 lbl_803B1B30 = .data:0x803B1B30; // type:object size:0x10
-lbl_803B1B40 = .data:0x803B1B40; // type:object size:0x20
+__vt__7CEntity = .data:0x803B1B40; // type:object size:0x20
 lbl_803B1B60 = .data:0x803B1B60; // type:object size:0x10
 lbl_803B1B70 = .data:0x803B1B70; // type:object size:0x10
 lbl_803B1B80 = .data:0x803B1B80; // type:object size:0x10
@@ -20295,7 +20295,7 @@ lbl_80419118 = .sbss:0x80419118; // type:object size:0x4 data:4byte
 lbl_8041911C = .sbss:0x8041911C; // type:object size:0x4 data:4byte
 lbl_80419120 = .sbss:0x80419120; // type:object size:0x4 data:4byte
 lbl_80419124 = .sbss:0x80419124; // type:object size:0x2 data:2byte
-lbl_80419128 = .sbss:0x80419128; // type:object size:0x4 data:4byte
+kInvalidAreaId = .sbss:0x80419128; // type:object size:0x4 data:4byte
 lbl_8041912C = .sbss:0x8041912C; // type:object size:0x4 data:4byte
 lbl_80419130 = .sbss:0x80419130; // type:object size:0x4 data:4byte
 lbl_80419134 = .sbss:0x80419134; // type:object size:0x4 data:4byte
diff --git a/configure.py b/configure.py
index 0d34528..f4cb732 100644
--- a/configure.py
+++ b/configure.py
@@ -18,6 +18,7 @@ LIBS = [
         "mw_version": "1.3.2",
         "host": True,
         "objects": [
+            ["MetroidPrime/CEntity.cpp", False],
             ["MetroidPrime/HUD/CHUDMemoParms.cpp", True],
             ["MetroidPrime/Player/CPlayerState.cpp", False],
         ],
diff --git a/include/Kyoto/Streams/CInputStream.hpp b/include/Kyoto/Streams/CInputStream.hpp
new file mode 100644
index 0000000..86eda00
--- /dev/null
+++ b/include/Kyoto/Streams/CInputStream.hpp
@@ -0,0 +1,138 @@
+#ifndef _CINPUTSTREAM
+#define _CINPUTSTREAM
+
+#include "types.h"
+
+#include "stddef.h"
+
+class CInputStream;
+template < typename T >
+struct TType {};
+template < typename T >
+T cinput_stream_helper(const TType< T >& type, CInputStream& in);
+
+template < typename T >
+TType< T > TGetType() {
+  return TType< T >();
+}
+
+class CInputStream {
+public:
+  CInputStream(int len);
+  CInputStream(const void* ptr, int len, bool owned);
+  virtual ~CInputStream();
+  virtual size_t Read(void* dest, size_t len) = 0;
+
+  float ReadFloat();
+  u64 ReadLongLong();
+  uint ReadLong();
+  ushort ReadShort();
+  bool ReadBool();
+  uchar ReadChar();
+  uint ReadBits(uint len);
+  size_t ReadBytes(void* dest, size_t len);
+  void Get(void* dest, unsigned long len);
+
+  template < typename T >
+  inline T Get(const TType< T >& type = TType< T >()) {
+    return cinput_stream_helper(type, *this);
+  }
+
+  bool ReadPackedBool() { return ReadBits(1) != 0; }
+
+  // TODO: this cast to uint fixes regalloc in
+  // CIEKeyframeEmitter / rstl::vector(CInputStream&)
+  // why?
+  int ReadInt32() { return static_cast< uint >(Get(TType< int >())); }
+  u16 ReadUint16() { return Get<u16>(); }
+
+  uint GetBlockOffset() const { return x4_blockOffset; }
+
+private:
+  bool GrabAnotherBlock();
+  bool InternalReadNext();
+
+  uint x4_blockOffset;
+  uint x8_blockLen;
+  uint xc_len;
+  uchar* x10_ptr;
+  bool x14_owned;
+  uint x18_readPosition;
+  uint x1c_bitWord;
+  uint x20_bitOffset;
+};
+
+template < typename T >
+inline T cinput_stream_helper(const TType< T >& type, CInputStream& in) {
+  return T(in);
+}
+template <>
+inline bool cinput_stream_helper(const TType< bool >& type, CInputStream& in) {
+  return in.ReadBool();
+}
+template <>
+inline char cinput_stream_helper(const TType< char >& type, CInputStream& in) {
+  return in.ReadChar();
+}
+
+template <>
+inline unsigned char cinput_stream_helper(const TType< unsigned char >& type, CInputStream& in) {
+  return in.ReadChar();
+}
+
+template <>
+inline int cinput_stream_helper(const TType< int >& type, CInputStream& in) {
+  return in.ReadLong();
+}
+template <>
+inline uint cinput_stream_helper(const TType< uint >& type, CInputStream& in) {
+  return in.ReadLong();
+}
+template <>
+inline unsigned long cinput_stream_helper(const TType< unsigned long >& type, CInputStream& in) {
+  return in.ReadLong();
+}
+template <>
+inline float cinput_stream_helper(const TType< float >& type, CInputStream& in) {
+  return in.ReadFloat();
+}
+template <>
+inline short cinput_stream_helper(const TType< short >& type, CInputStream& in) {
+  return in.ReadShort();
+}
+template <>
+inline ushort cinput_stream_helper(const TType< ushort >& type, CInputStream& in) {
+  return in.ReadShort();
+}
+
+// rstl
+#include "rstl/pair.hpp"
+template < typename L, typename R >
+inline rstl::pair< L, R > cinput_stream_helper(const TType< rstl::pair< L, R > >& type,
+                                               CInputStream& in) {
+  rstl::pair< L, R > result;
+  result.first = in.Get(TType< L >());
+  result.second = in.Get(TType< R >());
+  return result;
+}
+
+#include "rstl/vector.hpp"
+template < typename T, typename Alloc >
+inline rstl::vector< T, Alloc >::vector(CInputStream& in, const Alloc& allocator)
+: x4_count(0), x8_capacity(0), xc_items(nullptr) {
+  int count = in.ReadInt32();
+  reserve(count);
+  for (int i = 0; i < count; i++) {
+    push_back(in.Get(TType< T >()));
+  }
+}
+
+#include "rstl/reserved_vector.hpp"
+template < typename T, int N >
+inline rstl::reserved_vector< T, N >::reserved_vector(CInputStream& in) : x0_count(in.ReadInt32()) {
+  for (int i = 0; i < x0_count; i++) {
+    construct(&data()[i], in.Get(TType< T >()));
+  }
+}
+
+#endif // _CINPUTSTREAM
diff --git a/include/MetroidPrime/CEntity.hpp b/include/MetroidPrime/CEntity.hpp
new file mode 100644
index 0000000..76a2961
--- /dev/null
+++ b/include/MetroidPrime/CEntity.hpp
@@ -0,0 +1,54 @@
+#ifndef _CENTITY
+#define _CENTITY
+
+#include "MetroidPrime/TGameTypes.hpp"
+#include "MetroidPrime/CEntityInfo.hpp"
+
+#include "rstl/string.hpp"
+#include "rstl/vector.hpp"
+
+class CStateManager;
+
+class CEntity {
+public:
+  virtual ~CEntity();
+  virtual CEntity* TypesMatch(EEntityType);
+  virtual void PreThink(float dt, CStateManager& mgr);
+  virtual void Think(float dt, CStateManager& mgr);
+  virtual void AcceptScriptMsg(CStateManager& mgr, CScriptMsg&);
+  virtual void SetActive(const bool active);
+
+  CEntity(TUniqueId id, const CEntityInfo& info, bool active, const rstl::string& name);
+
+  void SendScriptMsgs(EScriptObjectState state, CStateManager& mgr, EScriptObjectMessage msg);
+  // static inline void SendScriptMsg(CStateManager& mgr, CEntity* to, TUniqueId sender,
+  //                                  EScriptObjectMessage msg) {
+  //   mgr.SendScriptMsg(to, sender, msg);
+  // }
+  TUniqueId GetUniqueId() const { return uid; }
+  TEditorId GetEditorId() const { return editorId; }
+  TAreaId GetAreaId() const;
+  TAreaId GetCurrentAreaId() const { return areaId; }
+  const bool GetActive() const { return active; }
+  // bool IsScriptingBlocked() const { return scriptingBlocked; }
+
+  // might be fake?
+  rstl::vector< SConnection >& ConnectionList() { return conns; }
+  const rstl::vector< SConnection >& GetConnectionList() const { return conns; }
+
+  static rstl::vector< SConnection > NullConnectionList;
+
+  TUniqueId SearchForSomething(CStateManager&, EScriptObjectState, EScriptObjectMessage);
+
+private:
+  TAreaId areaId;
+  TUniqueId uid;
+  TEditorId editorId;
+  rstl::vector< SConnection > conns;
+  bool active : 1;
+  bool notInArea : 1;
+  bool inGraveyard : 1;
+  bool scriptingBlocked : 1;
+};
+
+#endif // _CENTITY
diff --git a/include/MetroidPrime/CEntityInfo.hpp b/include/MetroidPrime/CEntityInfo.hpp
new file mode 100644
index 0000000..49c6d7d
--- /dev/null
+++ b/include/MetroidPrime/CEntityInfo.hpp
@@ -0,0 +1,95 @@
+#ifndef _CENTITYINFO
+#define _CENTITYINFO
+
+#include "MetroidPrime/TGameTypes.hpp"
+
+#include "rstl/vector.hpp"
+
+enum EEntityType {
+  kET_Entity = 0,
+  kET_Actor = 1,
+  kET_PhysicsActor = 2,
+  kET_Ai = 3,
+  kET_Patterned = 4,
+  kET_Weapon = 6,
+  kET_Effect = 7,
+  kET_GameProjectile = 8,
+  kET_Bomb = 14,
+  kET_EnergyProjectile = 19,
+  kET_Explosion = 22,
+  kET_GameLight = 26,
+  kET_HUDBillboardEffect = 28,
+  kET_Player = 32,
+  kET_ScriptPlayerActor = 34,
+  kET_ScriptActorKeyframe = 35,
+  kET_ScriptCameraShaker = 41,
+  kET_ScriptCamera = 44,
+  kET_ScriptColorModulate = 45,
+  kET_DarkSamusBattleStage = 51,
+  kET_ScriptDock = 55,
+  kET_ScriptDoor = 56,
+  kET_ScriptLayerController = 64,
+  kET_ScriptPickup = 66,
+  kET_ScriptPlayerProxy = 69,
+  kET_ScriptPortalTransition = 72,
+  kET_Relay = 73,
+  kET_ScriptSpawnPoint = 79,
+  kET_ScriptSpecialFunction = 80,
+  kET_ScriptStreamedMusic = 84,
+  kET_ScriptTeamAi = 88,
+  kET_ScriptTrigger = 92,
+  kET_ScriptWorldTeleporter = 98,
+  kET_DarkSamus = 111,
+  kET_PowerBomb = 156,
+};
+
+enum EScriptObjectState {
+  kSS_Active = 0x41435456,
+  kSS_Inactive = 0x49435456,
+  kSS_InvalidState = 0xffffffff
+};
+
+enum EScriptObjectMessage {
+  kSM_Activate = 0x41435456,
+  kSM_Deactivate = 0x44435456,
+  kSM_ToggleActive = 0x54435456,
+  kSM_None = 0xffffffff,
+};
+
+struct SConnection {
+  EScriptObjectState state;
+  EScriptObjectMessage msg;
+  TEditorId objId;
+  SConnection(EScriptObjectState state, EScriptObjectMessage msg, TEditorId id)
+  : state(state), msg(msg), objId(id) {}
+};
+
+class CEntityInfo {
+  TAreaId areaId;
+  rstl::vector< SConnection > conns;
+  TEditorId editorId;
+
+public:
+  CEntityInfo(TAreaId aid, const rstl::vector< SConnection >& conns,
+              TEditorId eid = kInvalidEditorId);
+  TAreaId GetAreaId() const { return areaId; }
+  const rstl::vector< SConnection >& GetConnectionList() const { return conns; }
+  TEditorId GetEditorId() const { return editorId; }
+};
+
+class CScriptMsg {
+public:
+  TUniqueId GetOriginator() { return originator; }
+  TUniqueId GetId() const { return id; }
+  EScriptObjectMessage GetMessage() const { return msg; }
+  EScriptObjectState GetState() const { return state; }
+
+public:
+  TUniqueId unk;
+  TUniqueId originator;
+  TUniqueId id;
+  EScriptObjectMessage msg;
+  EScriptObjectState state;
+};
+
+#endif // _CENTITYINFO
diff --git a/include/MetroidPrime/TGameTypes.hpp b/include/MetroidPrime/TGameTypes.hpp
new file mode 100644
index 0000000..44b2e4e
--- /dev/null
+++ b/include/MetroidPrime/TGameTypes.hpp
@@ -0,0 +1,73 @@
+#ifndef _TGAMETYPES
+#define _TGAMETYPES
+
+#include "types.h"
+
+class CInputStream;
+class COutputStream;
+
+struct TAreaId;
+struct TEditorId;
+struct TUniqueId;
+
+extern const TAreaId kInvalidAreaId;
+extern const TEditorId kInvalidEditorId;
+extern const TUniqueId kInvalidUniqueId;
+
+struct TAreaId {
+  int value;
+
+  TAreaId() : value(-1) {}
+  TAreaId(int value) : value(value) {}
+  int Value() const { return value; }
+
+  bool operator==(const TAreaId& other) const { return value == other.value; }
+  bool operator!=(const TAreaId& other) const { return value != other.value; }
+};
+CHECK_SIZEOF(TAreaId, 0x4)
+
+struct TEditorId {
+  uint value;
+
+  TEditorId(uint value) : value(value) {}
+  TEditorId(CInputStream& in);
+  // TODO
+  uint Value() const { return value & 0x3FFFFFF; }
+  uint Id() const { return value & 0xffff; }
+  int AreaNum() const { return (value >> 16) & 0x3ff; }
+
+  void PutTo(COutputStream&) const;
+
+  bool operator==(const TEditorId& other) const { return Value() == other.Value(); }
+  bool operator!=(const TEditorId& other) const { return Value() != other.Value(); }
+};
+CHECK_SIZEOF(TEditorId, 0x4)
+
+struct TUniqueId {
+  ushort value;
+
+  TUniqueId(ushort version, ushort id) : value(((version & 0x3F) << 10) | (id & 0x3FF)) {}
+
+  ushort Value() const { return value & 0x3FF; }
+  ushort Version() const { return (value >> 10) & 0x3F; }
+
+  bool operator==(const TUniqueId& other) const { return value == other.value; }
+  bool operator!=(const TUniqueId& other) const { return value != other.value; }
+  bool operator<(const TUniqueId& other) const { return value < other.value; }
+
+private:
+};
+CHECK_SIZEOF(TUniqueId, 0x2)
+
+// struct TGameScriptId {
+//   TEditorId editorId;
+//   bool b;
+// };
+// CHECK_SIZEOF(TGameScriptId, 0x8)
+
+typedef ushort TSfxId;
+static TSfxId InvalidSfxId = 0xFFFFu;
+
+#define ALIGN_UP(x, a) (((x) + (a - 1)) & ~(a - 1))
+
+#endif // _TGAMETYPES
diff --git a/include/rstl/vector.hpp b/include/rstl/vector.hpp
index 074d822..1ae8c76 100644
--- a/include/rstl/vector.hpp
+++ b/include/rstl/vector.hpp
@@ -59,10 +59,10 @@ public:
     }
   }
   vector(CInputStream& in, const Alloc& alloc = Alloc());
-  ~vector() {
+  ~vector(); /* {
     destroy(begin(), end());
     x0_allocator.deallocate(xc_items);
-  }
+  }*/
 
   void reserve(int size);
   void resize(int size, const T& in);
diff --git a/src/MetroidPrime/CEntity.cpp b/src/MetroidPrime/CEntity.cpp
new file mode 100644
index 0000000..a6ffc4f
--- /dev/null
+++ b/src/MetroidPrime/CEntity.cpp
@@ -0,0 +1,65 @@
+#include "MetroidPrime/CEntity.hpp"
+
+rstl::vector< SConnection > CEntity::NullConnectionList;
+
+// CEntityInfo::CEntityInfo(TAreaId aid, const rstl::vector< SConnection >& conns, TEditorId eid)
+// : x0_areaId(aid), x4_conns(conns), x14_editorId(eid) {}
+
+CEntity::CEntity(TUniqueId id, const CEntityInfo& info, bool active, const rstl::string& name)
+: areaId(info.GetAreaId())
+, uid(id)
+, editorId(info.GetEditorId())
+, conns(info.GetConnectionList())
+, active(active)
+, inGraveyard(false)
+// , scriptingBlocked(false)
+, notInArea(areaId == kInvalidAreaId) {}
+
+CEntity::~CEntity() {}
+
+void CEntity::AcceptScriptMsg(CStateManager& mgr, CScriptMsg& msg) {
+  switch (msg.GetMessage()) {
+  case kSM_Activate:
+    if (!active) {
+      SetActive(true);
+      SendScriptMsgs(kSS_Active, mgr, kSM_None);
+    }
+    break;
+  case kSM_Deactivate:
+    if (active) {
+      SetActive(false);
+      SendScriptMsgs(kSS_Inactive, mgr, kSM_None);
+    }
+    break;
+  case kSM_ToggleActive: {
+    CScriptMsg newMsg(msg);
+    if (!active) {
+      newMsg.msg = kSM_Deactivate;
+    }
+    AcceptScriptMsg(mgr, newMsg);
+    break;
+  }
+  }
+}
+
+void CEntity::SendScriptMsgs(EScriptObjectState state, CStateManager& mgr,
+                             EScriptObjectMessage skipMsg) {
+  rstl::vector< SConnection >::const_iterator it = conns.begin();
+  for (; it != conns.end(); ++it) {
+    // if (it->x0_state == state && it->x4_msg != skipMsg) {
+    //   mgr.SendScriptMsg(GetUniqueId(), it->x8_objId, it->x4_msg, state);
+    // }
+  }
+}
+
+void CEntity::PreThink(float dt, CStateManager& mgr) {}
+
+void CEntity::Think(float dt, CStateManager& mgr) {}
+
+void CEntity::SetActive(const bool active) { this->active = active; }
+
+TAreaId CEntity::GetAreaId() const { return notInArea ? kInvalidAreaId : areaId; }
+
+TUniqueId CEntity::SearchForSomething(CStateManager&, EScriptObjectState, EScriptObjectMessage) {
+
+}