diff --git a/config/SOUE01/splits.txt b/config/SOUE01/splits.txt
index 9c9503cb..86703289 100644
--- a/config/SOUE01/splits.txt
+++ b/config/SOUE01/splits.txt
@@ -973,6 +973,7 @@ d/col/bg/d_bg_s_acch.cpp:
 
 d/col/bg/d_bg_s_chk.cpp:
 	.text       start:0x80341300 end:0x80341488
+	.data       start:0x80547868 end:0x80547898
 
 d/col/bg/d_bg_s_gnd_chk.cpp:
 	.text       start:0x80341490 end:0x80341D68
diff --git a/config/SOUE01/symbols.txt b/config/SOUE01/symbols.txt
index 92a12ffb..17db7bc6 100644
--- a/config/SOUE01/symbols.txt
+++ b/config/SOUE01/symbols.txt
@@ -19246,11 +19246,11 @@ __ct__8dBgS_ChkFv = .text:0x80341300; // type:function size:0x4C
 __dt__8dBgS_ChkFv = .text:0x80341350; // type:function size:0x68
 GetPolyPassChkInfo__8dBgS_ChkFv = .text:0x803413C0; // type:function size:0x4
 GetGrpPassChkInfo__8dBgS_ChkFv = .text:0x803413D0; // type:function size:0x10
-fn_803413E0 = .text:0x803413E0; // type:function size:0x10
-fn_803413F0 = .text:0x803413F0; // type:function size:0x40
-fn_80341430 = .text:0x80341430; // type:function size:0x10
-fn_80341440 = .text:0x80341440; // type:function size:0x40
-fn_80341480 = .text:0x80341480; // type:function size:0x8
+__ct__15cBgS_GrpPassChkFv = .text:0x803413E0; // type:function size:0x10
+__dt__15cBgS_GrpPassChkFv = .text:0x803413F0; // type:function size:0x40
+__ct__16cBgS_PolyPassChkFv = .text:0x80341430; // type:function size:0x10
+__dt__16cBgS_PolyPassChkFv = .text:0x80341440; // type:function size:0x40
+@16@__dt__8dBgS_ChkFv = .text:0x80341480; // type:function size:0x8
 __ct__11dBgS_GndChkFv = .text:0x80341490; // type:function size:0x6C
 __dt__11dBgS_GndChkFv = .text:0x80341500; // type:function size:0x68
 fn_80341570 = .text:0x80341570; // type:function size:0x44
@@ -19290,8 +19290,8 @@ fn_80341D30 = .text:0x80341D30; // type:function size:0x8
 fn_80341D40 = .text:0x80341D40; // type:function size:0x8
 fn_80341D50 = .text:0x80341D50; // type:function size:0x8
 fn_80341D60 = .text:0x80341D60; // type:function size:0x8
-fn_80341D70 = .text:0x80341D70; // type:function size:0x44
-fn_80341DC0 = .text:0x80341DC0; // type:function size:0x58
+__ct__15dBgS_GrpPassChkFv = .text:0x80341D70; // type:function size:0x44
+__dt__15dBgS_GrpPassChkFv = .text:0x80341DC0; // type:function size:0x58
 fn_80341E20 = .text:0x80341E20; // type:function size:0x6C
 fn_80341E90 = .text:0x80341E90; // type:function size:0x68
 fn_80341F00 = .text:0x80341F00; // type:function size:0x18
@@ -19355,8 +19355,8 @@ fn_80342C60 = .text:0x80342C60; // type:function size:0x8
 fn_80342C70 = .text:0x80342C70; // type:function size:0x8
 fn_80342C80 = .text:0x80342C80; // type:function size:0x8
 fn_80342C90 = .text:0x80342C90; // type:function size:0x8
-fn_80342CA0 = .text:0x80342CA0; // type:function size:0x6C
-fn_80342D10 = .text:0x80342D10; // type:function size:0x58
+__ct__16dBgS_PolyPassChkFv = .text:0x80342CA0; // type:function size:0x6C
+__dt__16dBgS_PolyPassChkFv = .text:0x80342D10; // type:function size:0x58
 __ct__12dBgS_RoofChkFv = .text:0x80342D70; // type:function size:0xC0
 __dt__12dBgS_RoofChkFv = .text:0x80342E30; // type:function size:0x68
 SetPos__12dBgS_RoofChkFPC7mVec3_c = .text:0x80342EA0; // type:function size:0x1C
@@ -36101,9 +36101,9 @@ __vt__12dBgS_ObjAcch = .data:0x80547808; // type:object size:0x24
 __vt__9dBgS_Acch = .data:0x8054782C; // type:object size:0x24
 __vt__12dBgS_AcchCir = .data:0x80547850; // type:object size:0xC
 __vt__8cM3dGCir = .data:0x8054785C; // type:object size:0xC
-lbl_80547868 = .data:0x80547868; // type:object size:0x18
-lbl_80547880 = .data:0x80547880; // type:object size:0xC
-lbl_8054788C = .data:0x8054788C; // type:object size:0xC
+__vt__8dBgS_Chk = .data:0x80547868; // type:object size:0x18
+__vt__15cBgS_GrpPassChk = .data:0x80547880; // type:object size:0xC
+__vt__16cBgS_PolyPassChk = .data:0x8054788C; // type:object size:0xC
 lbl_80547898 = .data:0x80547898; // type:object size:0x24
 lbl_805478BC = .data:0x805478BC; // type:object size:0x24
 lbl_805478E0 = .data:0x805478E0; // type:object size:0x24
diff --git a/configure.py b/configure.py
index 326fed53..a77f828b 100644
--- a/configure.py
+++ b/configure.py
@@ -411,7 +411,7 @@ def nw4rLib(lib_name, objects, extra_cflags=[]):
             Object(Matching, "d/col/bg/d_bg_plc.cpp"),
             Object(NonMatching, "d/col/bg/d_bg_s.cpp"),
             Object(NonMatching, "d/col/bg/d_bg_s_acch.cpp"),
-            Object(NonMatching, "d/col/bg/d_bg_s_chk.cpp"),
+            Object(Matching, "d/col/bg/d_bg_s_chk.cpp"),
             Object(NonMatching, "d/col/bg/d_bg_s_gnd_chk.cpp"),
             Object(NonMatching, "d/col/bg/d_bg_s_grp_pass_chk.cpp"),
             Object(NonMatching, "d/col/bg/d_bg_s_lin_chk.cpp"),
diff --git a/include/d/col/bg/d_bg_s_chk.h b/include/d/col/bg/d_bg_s_chk.h
index 983456e0..de76d735 100644
--- a/include/d/col/bg/d_bg_s_chk.h
+++ b/include/d/col/bg/d_bg_s_chk.h
@@ -1,14 +1,17 @@
 #ifndef D_BG_S_CHK_H
 #define D_BG_S_CHK_H
 
-#include "d/col/bg/d_bg_s_grp_pass_chk.h"
+// Include order matters here
+// clang-format off
 #include "d/col/bg/d_bg_s_poly_pass_chk.h"
+#include "d/col/bg/d_bg_s_grp_pass_chk.h"
+// clang-format on
 
 class dBgS_Chk : public dBgS_PolyPassChk, public dBgS_GrpPassChk {
 public:
     dBgS_Chk();
-    cBgS_PolyPassChk *GetPolyPassChkInfo();
     cBgS_GrpPassChk *GetGrpPassChkInfo();
+    cBgS_PolyPassChk *GetPolyPassChkInfo();
 
     virtual ~dBgS_Chk();
 };
diff --git a/include/d/col/bg/d_bg_s_poly_pass_chk.h b/include/d/col/bg/d_bg_s_poly_pass_chk.h
index a60cc4e2..e6017323 100644
--- a/include/d/col/bg/d_bg_s_poly_pass_chk.h
+++ b/include/d/col/bg/d_bg_s_poly_pass_chk.h
@@ -3,7 +3,8 @@
 
 class cBgS_PolyPassChk {
 public:
-    virtual ~cBgS_PolyPassChk() {}
+    cBgS_PolyPassChk();
+    virtual ~cBgS_PolyPassChk();
 };
 
 class dBgS_PolyPassChk : public cBgS_PolyPassChk {
diff --git a/include/d/col/bg/d_bg_w.h b/include/d/col/bg/d_bg_w.h
index d5d8b5eb..8d82d118 100644
--- a/include/d/col/bg/d_bg_w.h
+++ b/include/d/col/bg/d_bg_w.h
@@ -219,7 +219,9 @@ class cBgW : public dBgW_Base {
     /* 0x10C */ virtual void ClassifyPlane();
 
     u32 GetOldInvMtx(mMtx_c *m);
+
     // MtxP GetBaseMtxP() { return pm_base; }
+
     bool ChkNoCalcVtx() {
         return mFlags & NO_CALC_VTX_e;
     }
diff --git a/include/d/col/c/c_bg_s_chk.h b/include/d/col/c/c_bg_s_chk.h
index 072ddd65..a85f6a42 100644
--- a/include/d/col/c/c_bg_s_chk.h
+++ b/include/d/col/c/c_bg_s_chk.h
@@ -10,7 +10,8 @@ struct cBgD_Vtx_t : public Vec {};
 
 class cBgS_GrpPassChk {
 public:
-    virtual ~cBgS_GrpPassChk() {}
+    cBgS_GrpPassChk();
+    virtual ~cBgS_GrpPassChk();
 };
 
 class cBgS_PolyPassChk;
diff --git a/src/d/col/bg/d_bg_s_chk.cpp b/src/d/col/bg/d_bg_s_chk.cpp
index e69de29b..6b770ee8 100644
--- a/src/d/col/bg/d_bg_s_chk.cpp
+++ b/src/d/col/bg/d_bg_s_chk.cpp
@@ -0,0 +1,20 @@
+#include "d/col/bg/d_bg_s_chk.h"
+
+dBgS_Chk::dBgS_Chk() {}
+
+dBgS_Chk::~dBgS_Chk() {}
+
+cBgS_PolyPassChk *dBgS_Chk::GetPolyPassChkInfo() {
+    return this;
+}
+cBgS_GrpPassChk *dBgS_Chk::GetGrpPassChkInfo() {
+    return this;
+}
+
+cBgS_GrpPassChk::cBgS_GrpPassChk() {}
+
+cBgS_GrpPassChk::~cBgS_GrpPassChk() {}
+
+cBgS_PolyPassChk::cBgS_PolyPassChk() {}
+
+cBgS_PolyPassChk::~cBgS_PolyPassChk() {}