diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Destroy.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Destroy.s
deleted file mode 100644
index 1e0e176bce..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Destroy.s
+++ /dev/null
@@ -1,14 +0,0 @@
-glabel BgSpot18Obj_Destroy
-/* 00480 808B8D90 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00484 808B8D94 AFA40018 */  sw      $a0, 0x0018($sp)           
-/* 00488 808B8D98 8FAE0018 */  lw      $t6, 0x0018($sp)           
-/* 0048C 808B8D9C AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00490 808B8DA0 00A02025 */  or      $a0, $a1, $zero            ## $a0 = 00000000
-/* 00494 808B8DA4 24A50810 */  addiu   $a1, $a1, 0x0810           ## $a1 = 00000810
-/* 00498 808B8DA8 0C00FB56 */  jal     DynaPolyInfo_Free
-              ## DynaPolyInfo_delReserve
-/* 0049C 808B8DAC 8DC6014C */  lw      $a2, 0x014C($t6)           ## 0000014C
-/* 004A0 808B8DB0 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 004A4 808B8DB4 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 004A8 808B8DB8 03E00008 */  jr      $ra                        
-/* 004AC 808B8DBC 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Draw.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Draw.s
deleted file mode 100644
index 1c5796ce5d..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Draw.s
+++ /dev/null
@@ -1,17 +0,0 @@
-glabel BgSpot18Obj_Draw
-/* 00784 808B9094 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00788 808B9098 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 0078C 808B909C 00803825 */  or      $a3, $a0, $zero            ## $a3 = 00000000
-/* 00790 808B90A0 84EE001C */  lh      $t6, 0x001C($a3)           ## 0000001C
-/* 00794 808B90A4 00A02025 */  or      $a0, $a1, $zero            ## $a0 = 00000000
-/* 00798 808B90A8 3C05808C */  lui     $a1, %hi(D_808B9144)       ## $a1 = 808C0000
-/* 0079C 808B90AC 31CF000F */  andi    $t7, $t6, 0x000F           ## $t7 = 00000000
-/* 007A0 808B90B0 000FC080 */  sll     $t8, $t7,  2               
-/* 007A4 808B90B4 00B82821 */  addu    $a1, $a1, $t8              
-/* 007A8 808B90B8 0C00D498 */  jal     Gfx_DrawDListOpa
-              
-/* 007AC 808B90BC 8CA59144 */  lw      $a1, %lo(D_808B9144)($a1)  
-/* 007B0 808B90C0 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 007B4 808B90C4 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 007B8 808B90C8 03E00008 */  jr      $ra                        
-/* 007BC 808B90CC 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Init.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Init.s
deleted file mode 100644
index 4075146439..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Init.s
+++ /dev/null
@@ -1,41 +0,0 @@
-.rdata
-glabel D_808B925C
-    .asciz "Spot18 Object [arg_data : 0x%04x]\n"
-    .balign 4
-
-.text
-glabel BgSpot18Obj_Init
-/* 0040C 808B8D1C 27BDFFE0 */  addiu   $sp, $sp, 0xFFE0           ## $sp = FFFFFFE0
-/* 00410 808B8D20 AFB00018 */  sw      $s0, 0x0018($sp)           
-/* 00414 808B8D24 00808025 */  or      $s0, $a0, $zero            ## $s0 = 00000000
-/* 00418 808B8D28 AFBF001C */  sw      $ra, 0x001C($sp)           
-/* 0041C 808B8D2C AFA50024 */  sw      $a1, 0x0024($sp)           
-/* 00420 808B8D30 3C04808C */  lui     $a0, %hi(D_808B925C)       ## $a0 = 808C0000
-/* 00424 808B8D34 2484925C */  addiu   $a0, $a0, %lo(D_808B925C)  ## $a0 = 808B925C
-/* 00428 808B8D38 0C00084C */  jal     osSyncPrintf
-              
-/* 0042C 808B8D3C 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00430 808B8D40 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00434 808B8D44 0C22E2CE */  jal     func_808B8B38              
-/* 00438 808B8D48 8FA50024 */  lw      $a1, 0x0024($sp)           
-/* 0043C 808B8D4C 14400005 */  bne     $v0, $zero, .L808B8D64     
-/* 00440 808B8D50 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00444 808B8D54 0C00B55C */  jal     Actor_Kill
-              
-/* 00448 808B8D58 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 0044C 808B8D5C 10000008 */  beq     $zero, $zero, .L808B8D80   
-/* 00450 808B8D60 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L808B8D64:
-/* 00454 808B8D64 0C22E332 */  jal     func_808B8CC8              
-/* 00458 808B8D68 8FA50024 */  lw      $a1, 0x0024($sp)           
-/* 0045C 808B8D6C 54400004 */  bnel    $v0, $zero, .L808B8D80     
-/* 00460 808B8D70 8FBF001C */  lw      $ra, 0x001C($sp)           
-/* 00464 808B8D74 0C00B55C */  jal     Actor_Kill
-              
-/* 00468 808B8D78 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 0046C 808B8D7C 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L808B8D80:
-/* 00470 808B8D80 8FB00018 */  lw      $s0, 0x0018($sp)           
-/* 00474 808B8D84 27BD0020 */  addiu   $sp, $sp, 0x0020           ## $sp = 00000000
-/* 00478 808B8D88 03E00008 */  jr      $ra                        
-/* 0047C 808B8D8C 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Update.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Update.s
deleted file mode 100644
index 4276014d28..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Update.s
+++ /dev/null
@@ -1,15 +0,0 @@
-glabel BgSpot18Obj_Update
-/* 00750 808B9060 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00754 808B9064 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00758 808B9068 84820168 */  lh      $v0, 0x0168($a0)           ## 00000168
-/* 0075C 808B906C 18400002 */  blez    $v0, .L808B9078            
-/* 00760 808B9070 244EFFFF */  addiu   $t6, $v0, 0xFFFF           ## $t6 = FFFFFFFF
-/* 00764 808B9074 A48E0168 */  sh      $t6, 0x0168($a0)           ## 00000168
-.L808B9078:
-/* 00768 808B9078 8C990164 */  lw      $t9, 0x0164($a0)           ## 00000164
-/* 0076C 808B907C 0320F809 */  jalr    $ra, $t9                   
-/* 00770 808B9080 00000000 */  nop
-/* 00774 808B9084 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00778 808B9088 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 0077C 808B908C 03E00008 */  jr      $ra                        
-/* 00780 808B9090 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8910.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8910.s
deleted file mode 100644
index a0a82faf58..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8910.s
+++ /dev/null
@@ -1,130 +0,0 @@
-.rdata
-glabel D_808B9150
-    .asciz "Error : リンク年齢不詳 (%s %d)(arg_data 0x%04x)\n"
-    .balign 4
-
-glabel D_808B9184
-    .asciz "../z_bg_spot18_obj.c"
-    .balign 4
-
-glabel D_808B919C
-    .asciz "出現しない Object (0x%04x)\n"
-    .balign 4
-
-glabel D_808B91B8
-    .asciz "Error : Obj出現判定が設定されていない(%s %d)(arg_data 0x%04x)\n"
-    .balign 4
-
-glabel D_808B91F8
-    .asciz "../z_bg_spot18_obj.c"
-    .balign 4
-
-glabel D_808B9210
-    .asciz "Error : Obj出現判定失敗(%s %d)(arg_data 0x%04x)\n"
-    .balign 4
-
-glabel D_808B9244
-    .asciz "../z_bg_spot18_obj.c"
-    .balign 4
-
-.text
-glabel func_808B8910
-/* 00000 808B8910 3C038016 */  lui     $v1, %hi(gSaveContext+4)
-/* 00004 808B8914 8C63E664 */  lw      $v1, %lo(gSaveContext+4)($v1)
-/* 00008 808B8918 27BDFFE0 */  addiu   $sp, $sp, 0xFFE0           ## $sp = FFFFFFE0
-/* 0000C 808B891C AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00010 808B8920 AFA40020 */  sw      $a0, 0x0020($sp)           
-/* 00014 808B8924 10600003 */  beq     $v1, $zero, .L808B8934     
-/* 00018 808B8928 AFA50024 */  sw      $a1, 0x0024($sp)           
-/* 0001C 808B892C 10000002 */  beq     $zero, $zero, .L808B8938   
-/* 00020 808B8930 24020005 */  addiu   $v0, $zero, 0x0005         ## $v0 = 00000005
-.L808B8934:
-/* 00024 808B8934 24020011 */  addiu   $v0, $zero, 0x0011         ## $v0 = 00000011
-.L808B8938:
-/* 00028 808B8938 24010011 */  addiu   $at, $zero, 0x0011         ## $at = 00000011
-/* 0002C 808B893C 14410003 */  bne     $v0, $at, .L808B894C       
-/* 00030 808B8940 8FAF0020 */  lw      $t7, 0x0020($sp)           
-/* 00034 808B8944 10000013 */  beq     $zero, $zero, .L808B8994   
-/* 00038 808B8948 24060001 */  addiu   $a2, $zero, 0x0001         ## $a2 = 00000001
-.L808B894C:
-/* 0003C 808B894C 10600003 */  beq     $v1, $zero, .L808B895C     
-/* 00040 808B8950 24010005 */  addiu   $at, $zero, 0x0005         ## $at = 00000005
-/* 00044 808B8954 10000002 */  beq     $zero, $zero, .L808B8960   
-/* 00048 808B8958 24020005 */  addiu   $v0, $zero, 0x0005         ## $v0 = 00000005
-.L808B895C:
-/* 0004C 808B895C 24020011 */  addiu   $v0, $zero, 0x0011         ## $v0 = 00000011
-.L808B8960:
-/* 00050 808B8960 14410003 */  bne     $v0, $at, .L808B8970       
-/* 00054 808B8964 3C04808C */  lui     $a0, %hi(D_808B9150)       ## $a0 = 808C0000
-/* 00058 808B8968 1000000A */  beq     $zero, $zero, .L808B8994   
-/* 0005C 808B896C 00003025 */  or      $a2, $zero, $zero          ## $a2 = 00000000
-.L808B8970:
-/* 00060 808B8970 8FAE0020 */  lw      $t6, 0x0020($sp)           
-/* 00064 808B8974 3C05808C */  lui     $a1, %hi(D_808B9184)       ## $a1 = 808C0000
-/* 00068 808B8978 24A59184 */  addiu   $a1, $a1, %lo(D_808B9184)  ## $a1 = 808B9184
-/* 0006C 808B897C 24849150 */  addiu   $a0, $a0, %lo(D_808B9150)  ## $a0 = 808B9150
-/* 00070 808B8980 240600B6 */  addiu   $a2, $zero, 0x00B6         ## $a2 = 000000B6
-/* 00074 808B8984 0C00084C */  jal     osSyncPrintf
-              
-/* 00078 808B8988 85C7001C */  lh      $a3, 0x001C($t6)           ## 0000001C
-/* 0007C 808B898C 1000002F */  beq     $zero, $zero, .L808B8A4C   
-/* 00080 808B8990 00001025 */  or      $v0, $zero, $zero          ## $v0 = 00000000
-.L808B8994:
-/* 00084 808B8994 85E7001C */  lh      $a3, 0x001C($t7)           ## 0000001C
-/* 00088 808B8998 3C03808C */  lui     $v1, %hi(D_808B90F0)       ## $v1 = 808C0000
-/* 0008C 808B899C 24010001 */  addiu   $at, $zero, 0x0001         ## $at = 00000001
-/* 00090 808B89A0 30F8000F */  andi    $t8, $a3, 0x000F           ## $t8 = 00000000
-/* 00094 808B89A4 0018C840 */  sll     $t9, $t8,  1               
-/* 00098 808B89A8 03264021 */  addu    $t0, $t9, $a2              
-/* 0009C 808B89AC 00681821 */  addu    $v1, $v1, $t0              
-/* 000A0 808B89B0 906390F0 */  lbu     $v1, %lo(D_808B90F0)($v1)  
-/* 000A4 808B89B4 10600007 */  beq     $v1, $zero, .L808B89D4     
-/* 000A8 808B89B8 00601025 */  or      $v0, $v1, $zero            ## $v0 = 808C0000
-/* 000AC 808B89BC 10410005 */  beq     $v0, $at, .L808B89D4       
-/* 000B0 808B89C0 24010002 */  addiu   $at, $zero, 0x0002         ## $at = 00000002
-/* 000B4 808B89C4 10410014 */  beq     $v0, $at, .L808B8A18       
-/* 000B8 808B89C8 3C04808C */  lui     $a0, %hi(D_808B91B8)       ## $a0 = 808C0000
-/* 000BC 808B89CC 10000019 */  beq     $zero, $zero, .L808B8A34   
-/* 000C0 808B89D0 3C04808C */  lui     $a0, %hi(D_808B9210)       ## $a0 = 808C0000
-.L808B89D4:
-/* 000C4 808B89D4 1460000E */  bne     $v1, $zero, .L808B8A10     
-/* 000C8 808B89D8 3C04808C */  lui     $a0, %hi(D_808B919C)       ## $a0 = 808C0000
-/* 000CC 808B89DC 2484919C */  addiu   $a0, $a0, %lo(D_808B919C)  ## $a0 = 808B919C
-/* 000D0 808B89E0 00E02825 */  or      $a1, $a3, $zero            ## $a1 = 00000000
-/* 000D4 808B89E4 0C00084C */  jal     osSyncPrintf
-              
-/* 000D8 808B89E8 AFA6001C */  sw      $a2, 0x001C($sp)           
-/* 000DC 808B89EC 8FA90020 */  lw      $t1, 0x0020($sp)           
-/* 000E0 808B89F0 8FA6001C */  lw      $a2, 0x001C($sp)           
-/* 000E4 808B89F4 3C03808C */  lui     $v1, %hi(D_808B90F0)       ## $v1 = 808C0000
-/* 000E8 808B89F8 852A001C */  lh      $t2, 0x001C($t1)           ## 0000001C
-/* 000EC 808B89FC 314B000F */  andi    $t3, $t2, 0x000F           ## $t3 = 00000000
-/* 000F0 808B8A00 000B6040 */  sll     $t4, $t3,  1               
-/* 000F4 808B8A04 01866821 */  addu    $t5, $t4, $a2              
-/* 000F8 808B8A08 006D1821 */  addu    $v1, $v1, $t5              
-/* 000FC 808B8A0C 906390F0 */  lbu     $v1, %lo(D_808B90F0)($v1)  
-.L808B8A10:
-/* 00100 808B8A10 1000000E */  beq     $zero, $zero, .L808B8A4C   
-/* 00104 808B8A14 00601025 */  or      $v0, $v1, $zero            ## $v0 = 808C0000
-.L808B8A18:
-/* 00108 808B8A18 3C05808C */  lui     $a1, %hi(D_808B91F8)       ## $a1 = 808C0000
-/* 0010C 808B8A1C 24A591F8 */  addiu   $a1, $a1, %lo(D_808B91F8)  ## $a1 = 808B91F8
-/* 00110 808B8A20 248491B8 */  addiu   $a0, $a0, %lo(D_808B91B8)  ## $a0 = FFFF91B8
-/* 00114 808B8A24 0C00084C */  jal     osSyncPrintf
-              
-/* 00118 808B8A28 240600CA */  addiu   $a2, $zero, 0x00CA         ## $a2 = 000000CA
-/* 0011C 808B8A2C 10000007 */  beq     $zero, $zero, .L808B8A4C   
-/* 00120 808B8A30 00001025 */  or      $v0, $zero, $zero          ## $v0 = 00000000
-.L808B8A34:
-/* 00124 808B8A34 3C05808C */  lui     $a1, %hi(D_808B9244)       ## $a1 = 808C0000
-/* 00128 808B8A38 24A59244 */  addiu   $a1, $a1, %lo(D_808B9244)  ## $a1 = 808B9244
-/* 0012C 808B8A3C 24849210 */  addiu   $a0, $a0, %lo(D_808B9210)  ## $a0 = FFFF9210
-/* 00130 808B8A40 0C00084C */  jal     osSyncPrintf
-              
-/* 00134 808B8A44 240600D2 */  addiu   $a2, $zero, 0x00D2         ## $a2 = 000000D2
-/* 00138 808B8A48 00001025 */  or      $v0, $zero, $zero          ## $v0 = 00000000
-.L808B8A4C:
-/* 0013C 808B8A4C 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00140 808B8A50 27BD0020 */  addiu   $sp, $sp, 0x0020           ## $sp = 00000000
-/* 00144 808B8A54 03E00008 */  jr      $ra                        
-/* 00148 808B8A58 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A5C.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A5C.s
deleted file mode 100644
index e0ce77939c..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A5C.s
+++ /dev/null
@@ -1,17 +0,0 @@
-glabel func_808B8A5C
-/* 0014C 808B8A5C 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00150 808B8A60 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00154 808B8A64 AFA5001C */  sw      $a1, 0x001C($sp)           
-/* 00158 808B8A68 848E001C */  lh      $t6, 0x001C($a0)           ## 0000001C
-/* 0015C 808B8A6C 3C05808C */  lui     $a1, %hi(D_808B90F4)       ## $a1 = 808C0000
-/* 00160 808B8A70 31CF000F */  andi    $t7, $t6, 0x000F           ## $t7 = 00000000
-/* 00164 808B8A74 000FC080 */  sll     $t8, $t7,  2               
-/* 00168 808B8A78 00B82821 */  addu    $a1, $a1, $t8              
-/* 0016C 808B8A7C 0C00B58B */  jal     Actor_SetScale
-              
-/* 00170 808B8A80 8CA590F4 */  lw      $a1, %lo(D_808B90F4)($a1)  
-/* 00174 808B8A84 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00178 808B8A88 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 0017C 808B8A8C 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-/* 00180 808B8A90 03E00008 */  jr      $ra                        
-/* 00184 808B8A94 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A98.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A98.s
deleted file mode 100644
index 875414d156..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A98.s
+++ /dev/null
@@ -1,32 +0,0 @@
-glabel func_808B8A98
-/* 00188 808B8A98 27BDFFD8 */  addiu   $sp, $sp, 0xFFD8           ## $sp = FFFFFFD8
-/* 0018C 808B8A9C AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00190 808B8AA0 AFA5002C */  sw      $a1, 0x002C($sp)           
-/* 00194 808B8AA4 AFA40028 */  sw      $a0, 0x0028($sp)           
-/* 00198 808B8AA8 AFA0001C */  sw      $zero, 0x001C($sp)         
-/* 0019C 808B8AAC 0C010D20 */  jal     DynaPolyInfo_SetActorMove
-              
-/* 001A0 808B8AB0 00002825 */  or      $a1, $zero, $zero          ## $a1 = 00000000
-/* 001A4 808B8AB4 8FAE0028 */  lw      $t6, 0x0028($sp)           
-/* 001A8 808B8AB8 3C04808C */  lui     $a0, %hi(D_808B90FC)       ## $a0 = 808C0000
-/* 001AC 808B8ABC 27A5001C */  addiu   $a1, $sp, 0x001C           ## $a1 = FFFFFFF4
-/* 001B0 808B8AC0 85CF001C */  lh      $t7, 0x001C($t6)           ## 0000001C
-/* 001B4 808B8AC4 31F8000F */  andi    $t8, $t7, 0x000F           ## $t8 = 00000000
-/* 001B8 808B8AC8 0018C880 */  sll     $t9, $t8,  2               
-/* 001BC 808B8ACC 00992021 */  addu    $a0, $a0, $t9              
-/* 001C0 808B8AD0 0C010620 */  jal     DynaPolyInfo_Alloc
-              
-/* 001C4 808B8AD4 8C8490FC */  lw      $a0, %lo(D_808B90FC)($a0)  
-/* 001C8 808B8AD8 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 001CC 808B8ADC 8FA60028 */  lw      $a2, 0x0028($sp)           
-/* 001D0 808B8AE0 8FA7001C */  lw      $a3, 0x001C($sp)           
-/* 001D4 808B8AE4 0C00FA9D */  jal     DynaPolyInfo_RegisterActor
-              ## DynaPolyInfo_setActor
-/* 001D8 808B8AE8 24850810 */  addiu   $a1, $a0, 0x0810           ## $a1 = 00000810
-/* 001DC 808B8AEC 8FA80028 */  lw      $t0, 0x0028($sp)           
-/* 001E0 808B8AF0 AD02014C */  sw      $v0, 0x014C($t0)           ## 0000014C
-/* 001E4 808B8AF4 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 001E8 808B8AF8 27BD0028 */  addiu   $sp, $sp, 0x0028           ## $sp = 00000000
-/* 001EC 808B8AFC 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-/* 001F0 808B8B00 03E00008 */  jr      $ra                        
-/* 001F4 808B8B04 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B08.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B08.s
deleted file mode 100644
index 5a327c1871..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B08.s
+++ /dev/null
@@ -1,13 +0,0 @@
-glabel func_808B8B08
-/* 001F8 808B8B08 AFA50004 */  sw      $a1, 0x0004($sp)           
-/* 001FC 808B8B0C 848F001C */  lh      $t7, 0x001C($a0)           ## 0000001C
-/* 00200 808B8B10 3C08808C */  lui     $t0, %hi(D_808B9104)       ## $t0 = 808C0000
-/* 00204 808B8B14 8C8E0004 */  lw      $t6, 0x0004($a0)           ## 00000004
-/* 00208 808B8B18 31F8000F */  andi    $t8, $t7, 0x000F           ## $t8 = 00000000
-/* 0020C 808B8B1C 0018C880 */  sll     $t9, $t8,  2               
-/* 00210 808B8B20 01194021 */  addu    $t0, $t0, $t9              
-/* 00214 808B8B24 8D089104 */  lw      $t0, %lo(D_808B9104)($t0)  
-/* 00218 808B8B28 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-/* 0021C 808B8B2C 01C84825 */  or      $t1, $t6, $t0              ## $t1 = 808C0000
-/* 00220 808B8B30 03E00008 */  jr      $ra                        
-/* 00224 808B8B34 AC890004 */  sw      $t1, 0x0004($a0)           ## 00000004
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B38.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B38.s
deleted file mode 100644
index b3336bb4ab..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B38.s
+++ /dev/null
@@ -1,35 +0,0 @@
-glabel func_808B8B38
-/* 00228 808B8B38 27BDFFD8 */  addiu   $sp, $sp, 0xFFD8           ## $sp = FFFFFFD8
-/* 0022C 808B8B3C AFB30020 */  sw      $s3, 0x0020($sp)           
-/* 00230 808B8B40 AFB00014 */  sw      $s0, 0x0014($sp)           
-/* 00234 808B8B44 AFB2001C */  sw      $s2, 0x001C($sp)           
-/* 00238 808B8B48 AFB10018 */  sw      $s1, 0x0018($sp)           
-/* 0023C 808B8B4C 3C10808C */  lui     $s0, %hi(D_808B910C)       ## $s0 = 808C0000
-/* 00240 808B8B50 3C13808C */  lui     $s3, %hi(D_808B911C)       ## $s3 = 808C0000
-/* 00244 808B8B54 00808825 */  or      $s1, $a0, $zero            ## $s1 = 00000000
-/* 00248 808B8B58 00A09025 */  or      $s2, $a1, $zero            ## $s2 = 00000000
-/* 0024C 808B8B5C AFBF0024 */  sw      $ra, 0x0024($sp)           
-/* 00250 808B8B60 2673911C */  addiu   $s3, $s3, %lo(D_808B911C)  ## $s3 = 808B911C
-/* 00254 808B8B64 2610910C */  addiu   $s0, $s0, %lo(D_808B910C)  ## $s0 = 808B910C
-/* 00258 808B8B68 8E190000 */  lw      $t9, 0x0000($s0)           ## 808B910C
-.L808B8B6C:
-/* 0025C 808B8B6C 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 00260 808B8B70 02402825 */  or      $a1, $s2, $zero            ## $a1 = 00000000
-/* 00264 808B8B74 0320F809 */  jalr    $ra, $t9                   
-/* 00268 808B8B78 00000000 */  nop
-/* 0026C 808B8B7C 14400003 */  bne     $v0, $zero, .L808B8B8C     
-/* 00270 808B8B80 26100004 */  addiu   $s0, $s0, 0x0004           ## $s0 = 808B9110
-/* 00274 808B8B84 10000004 */  beq     $zero, $zero, .L808B8B98   
-/* 00278 808B8B88 00001025 */  or      $v0, $zero, $zero          ## $v0 = 00000000
-.L808B8B8C:
-/* 0027C 808B8B8C 5613FFF7 */  bnel    $s0, $s3, .L808B8B6C       
-/* 00280 808B8B90 8E190000 */  lw      $t9, 0x0000($s0)           ## 808B9110
-/* 00284 808B8B94 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-.L808B8B98:
-/* 00288 808B8B98 8FBF0024 */  lw      $ra, 0x0024($sp)           
-/* 0028C 808B8B9C 8FB00014 */  lw      $s0, 0x0014($sp)           
-/* 00290 808B8BA0 8FB10018 */  lw      $s1, 0x0018($sp)           
-/* 00294 808B8BA4 8FB2001C */  lw      $s2, 0x001C($sp)           
-/* 00298 808B8BA8 8FB30020 */  lw      $s3, 0x0020($sp)           
-/* 0029C 808B8BAC 03E00008 */  jr      $ra                        
-/* 002A0 808B8BB0 27BD0028 */  addiu   $sp, $sp, 0x0028           ## $sp = 00000000
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8BB4.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8BB4.s
deleted file mode 100644
index 32f1f221ba..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8BB4.s
+++ /dev/null
@@ -1,65 +0,0 @@
-glabel func_808B8BB4
-/* 002A4 808B8BB4 27BDFFE0 */  addiu   $sp, $sp, 0xFFE0           ## $sp = FFFFFFE0
-/* 002A8 808B8BB8 AFA50024 */  sw      $a1, 0x0024($sp)           
-/* 002AC 808B8BBC AFBF001C */  sw      $ra, 0x001C($sp)           
-/* 002B0 808B8BC0 AFB00018 */  sw      $s0, 0x0018($sp)           
-/* 002B4 808B8BC4 3C05808C */  lui     $a1, %hi(D_808B911C)       ## $a1 = 808C0000
-/* 002B8 808B8BC8 00808025 */  or      $s0, $a0, $zero            ## $s0 = 00000000
-/* 002BC 808B8BCC 0C01E037 */  jal     Actor_ProcessInitChain
-              
-/* 002C0 808B8BD0 24A5911C */  addiu   $a1, $a1, %lo(D_808B911C)  ## $a1 = 808B911C
-/* 002C4 808B8BD4 3C0E8016 */  lui     $t6, %hi(gSaveContext+4)
-/* 002C8 808B8BD8 8DCEE664 */  lw      $t6, %lo(gSaveContext+4)($t6)
-/* 002CC 808B8BDC 24010005 */  addiu   $at, $zero, 0x0005         ## $at = 00000005
-/* 002D0 808B8BE0 24020011 */  addiu   $v0, $zero, 0x0011         ## $v0 = 00000011
-/* 002D4 808B8BE4 11C00003 */  beq     $t6, $zero, .L808B8BF4     
-/* 002D8 808B8BE8 00000000 */  nop
-/* 002DC 808B8BEC 10000001 */  beq     $zero, $zero, .L808B8BF4   
-/* 002E0 808B8BF0 24020005 */  addiu   $v0, $zero, 0x0005         ## $v0 = 00000005
-.L808B8BF4:
-/* 002E4 808B8BF4 54410006 */  bnel    $v0, $at, .L808B8C10       
-/* 002E8 808B8BF8 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 002EC 808B8BFC 0C22E40C */  jal     func_808B9030              
-/* 002F0 808B8C00 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 002F4 808B8C04 1000001E */  beq     $zero, $zero, .L808B8C80   
-/* 002F8 808B8C08 8FBF001C */  lw      $ra, 0x001C($sp)           
-/* 002FC 808B8C0C 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L808B8C10:
-/* 00300 808B8C10 8FA40024 */  lw      $a0, 0x0024($sp)           
-/* 00304 808B8C14 00052A03 */  sra     $a1, $a1,  8               
-/* 00308 808B8C18 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 0030C 808B8C1C 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00310 808B8C20 10400014 */  beq     $v0, $zero, .L808B8C74     
-/* 00314 808B8C24 00000000 */  nop
-/* 00318 808B8C28 0C22E40C */  jal     func_808B9030              
-/* 0031C 808B8C2C 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00320 808B8C30 0C01DE1C */  jal     Math_Sins
-              ## sins?
-/* 00324 808B8C34 86040032 */  lh      $a0, 0x0032($s0)           ## 00000032
-/* 00328 808B8C38 3C0142A0 */  lui     $at, 0x42A0                ## $at = 42A00000
-/* 0032C 808B8C3C 44812000 */  mtc1    $at, $f4                   ## $f4 = 80.00
-/* 00330 808B8C40 C6080008 */  lwc1    $f8, 0x0008($s0)           ## 00000008
-/* 00334 808B8C44 86040032 */  lh      $a0, 0x0032($s0)           ## 00000032
-/* 00338 808B8C48 46040182 */  mul.s   $f6, $f0, $f4              
-/* 0033C 808B8C4C 46083280 */  add.s   $f10, $f6, $f8             
-/* 00340 808B8C50 0C01DE0D */  jal     Math_Coss
-              ## coss?
-/* 00344 808B8C54 E60A0024 */  swc1    $f10, 0x0024($s0)          ## 00000024
-/* 00348 808B8C58 3C0142A0 */  lui     $at, 0x42A0                ## $at = 42A00000
-/* 0034C 808B8C5C 44818000 */  mtc1    $at, $f16                  ## $f16 = 80.00
-/* 00350 808B8C60 C6040010 */  lwc1    $f4, 0x0010($s0)           ## 00000010
-/* 00354 808B8C64 46100482 */  mul.s   $f18, $f0, $f16            
-/* 00358 808B8C68 46049180 */  add.s   $f6, $f18, $f4             
-/* 0035C 808B8C6C 10000003 */  beq     $zero, $zero, .L808B8C7C   
-/* 00360 808B8C70 E606002C */  swc1    $f6, 0x002C($s0)           ## 0000002C
-.L808B8C74:
-/* 00364 808B8C74 0C22E399 */  jal     func_808B8E64              
-/* 00368 808B8C78 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-.L808B8C7C:
-/* 0036C 808B8C7C 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L808B8C80:
-/* 00370 808B8C80 8FB00018 */  lw      $s0, 0x0018($sp)           
-/* 00374 808B8C84 27BD0020 */  addiu   $sp, $sp, 0x0020           ## $sp = 00000000
-/* 00378 808B8C88 03E00008 */  jr      $ra                        
-/* 0037C 808B8C8C 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8C90.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8C90.s
deleted file mode 100644
index 54bd0d188c..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8C90.s
+++ /dev/null
@@ -1,16 +0,0 @@
-glabel func_808B8C90
-/* 00380 808B8C90 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00384 808B8C94 AFA5001C */  sw      $a1, 0x001C($sp)           
-/* 00388 808B8C98 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 0038C 808B8C9C 3C05808C */  lui     $a1, %hi(D_808B9130)       ## $a1 = 808C0000
-/* 00390 808B8CA0 AFA40018 */  sw      $a0, 0x0018($sp)           
-/* 00394 808B8CA4 0C01E037 */  jal     Actor_ProcessInitChain
-              
-/* 00398 808B8CA8 24A59130 */  addiu   $a1, $a1, %lo(D_808B9130)  ## $a1 = 808B9130
-/* 0039C 808B8CAC 0C22E370 */  jal     func_808B8DC0              
-/* 003A0 808B8CB0 8FA40018 */  lw      $a0, 0x0018($sp)           
-/* 003A4 808B8CB4 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 003A8 808B8CB8 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 003AC 808B8CBC 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-/* 003B0 808B8CC0 03E00008 */  jr      $ra                        
-/* 003B4 808B8CC4 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8CC8.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8CC8.s
deleted file mode 100644
index b63ff00195..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8CC8.s
+++ /dev/null
@@ -1,23 +0,0 @@
-glabel func_808B8CC8
-/* 003B8 808B8CC8 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 003BC 808B8CCC AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 003C0 808B8CD0 848E001C */  lh      $t6, 0x001C($a0)           ## 0000001C
-/* 003C4 808B8CD4 3C02808C */  lui     $v0, %hi(D_808B913C)       ## $v0 = 808C0000
-/* 003C8 808B8CD8 31CF000F */  andi    $t7, $t6, 0x000F           ## $t7 = 00000000
-/* 003CC 808B8CDC 000FC080 */  sll     $t8, $t7,  2               
-/* 003D0 808B8CE0 00581021 */  addu    $v0, $v0, $t8              
-/* 003D4 808B8CE4 8C42913C */  lw      $v0, %lo(D_808B913C)($v0)  
-/* 003D8 808B8CE8 50400008 */  beql    $v0, $zero, .L808B8D0C     
-/* 003DC 808B8CEC 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-/* 003E0 808B8CF0 0040F809 */  jalr    $ra, $v0                   
-/* 003E4 808B8CF4 00000000 */  nop
-/* 003E8 808B8CF8 54400004 */  bnel    $v0, $zero, .L808B8D0C     
-/* 003EC 808B8CFC 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-/* 003F0 808B8D00 10000002 */  beq     $zero, $zero, .L808B8D0C   
-/* 003F4 808B8D04 00001025 */  or      $v0, $zero, $zero          ## $v0 = 00000000
-/* 003F8 808B8D08 24020001 */  addiu   $v0, $zero, 0x0001         ## $v0 = 00000001
-.L808B8D0C:
-/* 003FC 808B8D0C 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00400 808B8D10 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 00404 808B8D14 03E00008 */  jr      $ra                        
-/* 00408 808B8D18 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DC0.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DC0.s
deleted file mode 100644
index abc03a59b1..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DC0.s
+++ /dev/null
@@ -1,5 +0,0 @@
-glabel func_808B8DC0
-/* 004B0 808B8DC0 3C0E808C */  lui     $t6, %hi(func_808B8DD0)    ## $t6 = 808C0000
-/* 004B4 808B8DC4 25CE8DD0 */  addiu   $t6, $t6, %lo(func_808B8DD0) ## $t6 = 808B8DD0
-/* 004B8 808B8DC8 03E00008 */  jr      $ra                        
-/* 004BC 808B8DCC AC8E0164 */  sw      $t6, 0x0164($a0)           ## 00000164
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DD0.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DD0.s
deleted file mode 100644
index e65fc9deb0..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DD0.s
+++ /dev/null
@@ -1,4 +0,0 @@
-glabel func_808B8DD0
-/* 004C0 808B8DD0 AFA40000 */  sw      $a0, 0x0000($sp)           
-/* 004C4 808B8DD4 03E00008 */  jr      $ra                        
-/* 004C8 808B8DD8 AFA50004 */  sw      $a1, 0x0004($sp)           
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DDC.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DDC.s
deleted file mode 100644
index 95f178cbe4..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DDC.s
+++ /dev/null
@@ -1,18 +0,0 @@
-glabel func_808B8DDC
-/* 004CC 808B8DDC 27BDFFE0 */  addiu   $sp, $sp, 0xFFE0           ## $sp = FFFFFFE0
-/* 004D0 808B8DE0 44802000 */  mtc1    $zero, $f4                 ## $f4 = 0.00
-/* 004D4 808B8DE4 AFA50024 */  sw      $a1, 0x0024($sp)           
-/* 004D8 808B8DE8 00802825 */  or      $a1, $a0, $zero            ## $a1 = 00000000
-/* 004DC 808B8DEC AFBF001C */  sw      $ra, 0x001C($sp)           
-/* 004E0 808B8DF0 AFA40020 */  sw      $a0, 0x0020($sp)           
-/* 004E4 808B8DF4 240E001C */  addiu   $t6, $zero, 0x001C         ## $t6 = 0000001C
-/* 004E8 808B8DF8 AFAE0014 */  sw      $t6, 0x0014($sp)           
-/* 004EC 808B8DFC 8FA40024 */  lw      $a0, 0x0024($sp)           
-/* 004F0 808B8E00 3C0641A0 */  lui     $a2, 0x41A0                ## $a2 = 41A00000
-/* 004F4 808B8E04 3C074238 */  lui     $a3, 0x4238                ## $a3 = 42380000
-/* 004F8 808B8E08 0C00B92D */  jal     func_8002E4B4              
-/* 004FC 808B8E0C E7A40010 */  swc1    $f4, 0x0010($sp)           
-/* 00500 808B8E10 8FBF001C */  lw      $ra, 0x001C($sp)           
-/* 00504 808B8E14 27BD0020 */  addiu   $sp, $sp, 0x0020           ## $sp = 00000000
-/* 00508 808B8E18 03E00008 */  jr      $ra                        
-/* 0050C 808B8E1C 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E20.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E20.s
deleted file mode 100644
index b9aee035ea..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E20.s
+++ /dev/null
@@ -1,24 +0,0 @@
-.late_rodata
-glabel D_808B9280
-    .float 0.001
-
-.text
-glabel func_808B8E20
-/* 00510 808B8E20 C4800150 */  lwc1    $f0, 0x0150($a0)           ## 00000150
-/* 00514 808B8E24 3C01808C */  lui     $at, %hi(D_808B9280)       ## $at = 808C0000
-/* 00518 808B8E28 C4249280 */  lwc1    $f4, %lo(D_808B9280)($at)  
-/* 0051C 808B8E2C 46000005 */  abs.s   $f0, $f0                   
-/* 00520 808B8E30 8CA21C44 */  lw      $v0, 0x1C44($a1)           ## 00001C44
-/* 00524 808B8E34 4600203C */  c.lt.s  $f4, $f0                   
-/* 00528 808B8E38 00000000 */  nop
-/* 0052C 808B8E3C 45000007 */  bc1f    .L808B8E5C                 
-/* 00530 808B8E40 00000000 */  nop
-/* 00534 808B8E44 44803000 */  mtc1    $zero, $f6                 ## $f6 = 0.00
-/* 00538 808B8E48 2401FFEF */  addiu   $at, $zero, 0xFFEF         ## $at = FFFFFFEF
-/* 0053C 808B8E4C E4860150 */  swc1    $f6, 0x0150($a0)           ## 00000150
-/* 00540 808B8E50 8C4E0680 */  lw      $t6, 0x0680($v0)           ## 00000680
-/* 00544 808B8E54 01C17824 */  and     $t7, $t6, $at              
-/* 00548 808B8E58 AC4F0680 */  sw      $t7, 0x0680($v0)           ## 00000680
-.L808B8E5C:
-/* 0054C 808B8E5C 03E00008 */  jr      $ra                        
-/* 00550 808B8E60 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E64.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E64.s
deleted file mode 100644
index 24e0258f63..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E64.s
+++ /dev/null
@@ -1,7 +0,0 @@
-glabel func_808B8E64
-/* 00554 808B8E64 3C0F808C */  lui     $t7, %hi(func_808B8E7C)    ## $t7 = 808C0000
-/* 00558 808B8E68 240E0014 */  addiu   $t6, $zero, 0x0014         ## $t6 = 00000014
-/* 0055C 808B8E6C 25EF8E7C */  addiu   $t7, $t7, %lo(func_808B8E7C) ## $t7 = 808B8E7C
-/* 00560 808B8E70 A48E0168 */  sh      $t6, 0x0168($a0)           ## 00000168
-/* 00564 808B8E74 03E00008 */  jr      $ra                        
-/* 00568 808B8E78 AC8F0164 */  sw      $t7, 0x0164($a0)           ## 00000164
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E7C.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E7C.s
deleted file mode 100644
index 09835e1f02..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E7C.s
+++ /dev/null
@@ -1,32 +0,0 @@
-.late_rodata
-glabel D_808B9284
-    .float -0.001
-
-.text
-glabel func_808B8E7C
-/* 0056C 808B8E7C 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00570 808B8E80 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00574 808B8E84 AFA5001C */  sw      $a1, 0x001C($sp)           
-/* 00578 808B8E88 3C01808C */  lui     $at, %hi(D_808B9284)       ## $at = 808C0000
-/* 0057C 808B8E8C C4269284 */  lwc1    $f6, %lo(D_808B9284)($at)  
-/* 00580 808B8E90 C4840150 */  lwc1    $f4, 0x0150($a0)           ## 00000150
-/* 00584 808B8E94 240F0014 */  addiu   $t7, $zero, 0x0014         ## $t7 = 00000014
-/* 00588 808B8E98 4606203C */  c.lt.s  $f4, $f6                   
-/* 0058C 808B8E9C 00000000 */  nop
-/* 00590 808B8EA0 45020009 */  bc1fl   .L808B8EC8                 
-/* 00594 808B8EA4 A48F0168 */  sh      $t7, 0x0168($a0)           ## 00000168
-/* 00598 808B8EA8 848E0168 */  lh      $t6, 0x0168($a0)           ## 00000168
-/* 0059C 808B8EAC 1DC00006 */  bgtz    $t6, .L808B8EC8            
-/* 005A0 808B8EB0 00000000 */  nop
-/* 005A4 808B8EB4 0C22E3B8 */  jal     func_808B8EE0              
-/* 005A8 808B8EB8 AFA40018 */  sw      $a0, 0x0018($sp)           
-/* 005AC 808B8EBC 10000002 */  beq     $zero, $zero, .L808B8EC8   
-/* 005B0 808B8EC0 8FA40018 */  lw      $a0, 0x0018($sp)           
-/* 005B4 808B8EC4 A48F0168 */  sh      $t7, 0x0168($a0)           ## 00000168
-.L808B8EC8:
-/* 005B8 808B8EC8 0C22E388 */  jal     func_808B8E20              
-/* 005BC 808B8ECC 8FA5001C */  lw      $a1, 0x001C($sp)           
-/* 005C0 808B8ED0 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 005C4 808B8ED4 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 005C8 808B8ED8 03E00008 */  jr      $ra                        
-/* 005CC 808B8EDC 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8EE0.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8EE0.s
deleted file mode 100644
index 126bf172ce..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8EE0.s
+++ /dev/null
@@ -1,11 +0,0 @@
-glabel func_808B8EE0
-/* 005D0 808B8EE0 44800000 */  mtc1    $zero, $f0                 ## $f0 = 0.00
-/* 005D4 808B8EE4 3C0E808C */  lui     $t6, %hi(func_808B8F08)    ## $t6 = 808C0000
-/* 005D8 808B8EE8 25CE8F08 */  addiu   $t6, $t6, %lo(func_808B8F08) ## $t6 = 808B8F08
-/* 005DC 808B8EEC AC8E0164 */  sw      $t6, 0x0164($a0)           ## 00000164
-/* 005E0 808B8EF0 A4800032 */  sh      $zero, 0x0032($a0)         ## 00000032
-/* 005E4 808B8EF4 E4800068 */  swc1    $f0, 0x0068($a0)           ## 00000068
-/* 005E8 808B8EF8 E4800064 */  swc1    $f0, 0x0064($a0)           ## 00000064
-/* 005EC 808B8EFC E4800060 */  swc1    $f0, 0x0060($a0)           ## 00000060
-/* 005F0 808B8F00 03E00008 */  jr      $ra                        
-/* 005F4 808B8F04 E480005C */  swc1    $f0, 0x005C($a0)           ## 0000005C
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8F08.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8F08.s
deleted file mode 100644
index 8777aece59..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8F08.s
+++ /dev/null
@@ -1,83 +0,0 @@
-glabel func_808B8F08
-/* 005F8 808B8F08 27BDFFD8 */  addiu   $sp, $sp, 0xFFD8           ## $sp = FFFFFFD8
-/* 005FC 808B8F0C AFBF001C */  sw      $ra, 0x001C($sp)           
-/* 00600 808B8F10 AFB00018 */  sw      $s0, 0x0018($sp)           
-/* 00604 808B8F14 AFA5002C */  sw      $a1, 0x002C($sp)           
-/* 00608 808B8F18 8CAF1C44 */  lw      $t7, 0x1C44($a1)           ## 00001C44
-/* 0060C 808B8F1C 00808025 */  or      $s0, $a0, $zero            ## $s0 = 00000000
-/* 00610 808B8F20 3C053F99 */  lui     $a1, 0x3F99                ## $a1 = 3F990000
-/* 00614 808B8F24 3C063DCC */  lui     $a2, 0x3DCC                ## $a2 = 3DCC0000
-/* 00618 808B8F28 34C6CCCD */  ori     $a2, $a2, 0xCCCD           ## $a2 = 3DCCCCCD
-/* 0061C 808B8F2C 34A5999A */  ori     $a1, $a1, 0x999A           ## $a1 = 3F99999A
-/* 00620 808B8F30 24840068 */  addiu   $a0, $a0, 0x0068           ## $a0 = 00000068
-/* 00624 808B8F34 0C01DE80 */  jal     Math_ApproxF
-              
-/* 00628 808B8F38 AFAF0020 */  sw      $t7, 0x0020($sp)           
-/* 0062C 808B8F3C 0C00B638 */  jal     Actor_MoveForward
-              
-/* 00630 808B8F40 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00634 808B8F44 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00638 808B8F48 0C22E377 */  jal     func_808B8DDC              
-/* 0063C 808B8F4C 8FA5002C */  lw      $a1, 0x002C($sp)           
-/* 00640 808B8F50 C60C0024 */  lwc1    $f12, 0x0024($s0)          ## 00000024
-/* 00644 808B8F54 C60E002C */  lwc1    $f14, 0x002C($s0)          ## 0000002C
-/* 00648 808B8F58 8E060008 */  lw      $a2, 0x0008($s0)           ## 00000008
-/* 0064C 808B8F5C 0C032D65 */  jal     func_800CB594              
-/* 00650 808B8F60 8E070010 */  lw      $a3, 0x0010($s0)           ## 00000010
-/* 00654 808B8F64 3C0145C8 */  lui     $at, 0x45C8                ## $at = 45C80000
-/* 00658 808B8F68 44812000 */  mtc1    $at, $f4                   ## $f4 = 6400.00
-/* 0065C 808B8F6C 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00660 808B8F70 4600203E */  c.le.s  $f4, $f0                   
-/* 00664 808B8F74 00000000 */  nop
-/* 00668 808B8F78 45000026 */  bc1f    .L808B9014                 
-/* 0066C 808B8F7C 00000000 */  nop
-/* 00670 808B8F80 0C22E40C */  jal     func_808B9030              
-/* 00674 808B8F84 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00678 808B8F88 0C01DE1C */  jal     Math_Sins
-              ## sins?
-/* 0067C 808B8F8C 86040032 */  lh      $a0, 0x0032($s0)           ## 00000032
-/* 00680 808B8F90 3C0142A0 */  lui     $at, 0x42A0                ## $at = 42A00000
-/* 00684 808B8F94 44813000 */  mtc1    $at, $f6                   ## $f6 = 80.00
-/* 00688 808B8F98 C60A0008 */  lwc1    $f10, 0x0008($s0)          ## 00000008
-/* 0068C 808B8F9C 86040032 */  lh      $a0, 0x0032($s0)           ## 00000032
-/* 00690 808B8FA0 46060202 */  mul.s   $f8, $f0, $f6              
-/* 00694 808B8FA4 460A4400 */  add.s   $f16, $f8, $f10            
-/* 00698 808B8FA8 0C01DE0D */  jal     Math_Coss
-              ## coss?
-/* 0069C 808B8FAC E6100024 */  swc1    $f16, 0x0024($s0)          ## 00000024
-/* 006A0 808B8FB0 3C0142A0 */  lui     $at, 0x42A0                ## $at = 42A00000
-/* 006A4 808B8FB4 44819000 */  mtc1    $at, $f18                  ## $f18 = 80.00
-/* 006A8 808B8FB8 C6060010 */  lwc1    $f6, 0x0010($s0)           ## 00000010
-/* 006AC 808B8FBC 8FA20020 */  lw      $v0, 0x0020($sp)           
-/* 006B0 808B8FC0 46120102 */  mul.s   $f4, $f0, $f18             
-/* 006B4 808B8FC4 44805000 */  mtc1    $zero, $f10                ## $f10 = 0.00
-/* 006B8 808B8FC8 2401FFEF */  addiu   $at, $zero, 0xFFEF         ## $at = FFFFFFEF
-/* 006BC 808B8FCC E60A0150 */  swc1    $f10, 0x0150($s0)          ## 00000150
-/* 006C0 808B8FD0 46062200 */  add.s   $f8, $f4, $f6              
-/* 006C4 808B8FD4 E608002C */  swc1    $f8, 0x002C($s0)           ## 0000002C
-/* 006C8 808B8FD8 8C580680 */  lw      $t8, 0x0680($v0)           ## 00000680
-/* 006CC 808B8FDC 0301C824 */  and     $t9, $t8, $at              
-/* 006D0 808B8FE0 AC590680 */  sw      $t9, 0x0680($v0)           ## 00000680
-/* 006D4 808B8FE4 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 006D8 808B8FE8 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 006DC 808B8FEC 00052A03 */  sra     $a1, $a1,  8               
-/* 006E0 808B8FF0 0C00B2DD */  jal     Flags_SetSwitch
-              
-/* 006E4 808B8FF4 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 006E8 808B8FF8 0C01E221 */  jal     func_80078884              
-/* 006EC 808B8FFC 24044802 */  addiu   $a0, $zero, 0x4802         ## $a0 = 00004802
-/* 006F0 808B9000 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 006F4 808B9004 0C00BE0A */  jal     Audio_PlayActorSound2
-              
-/* 006F8 808B9008 24052835 */  addiu   $a1, $zero, 0x2835         ## $a1 = 00002835
-/* 006FC 808B900C 10000004 */  beq     $zero, $zero, .L808B9020   
-/* 00700 808B9010 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L808B9014:
-/* 00704 808B9014 0C00BE5D */  jal     func_8002F974              
-/* 00708 808B9018 2405200A */  addiu   $a1, $zero, 0x200A         ## $a1 = 0000200A
-/* 0070C 808B901C 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L808B9020:
-/* 00710 808B9020 8FB00018 */  lw      $s0, 0x0018($sp)           
-/* 00714 808B9024 27BD0028 */  addiu   $sp, $sp, 0x0028           ## $sp = 00000000
-/* 00718 808B9028 03E00008 */  jr      $ra                        
-/* 0071C 808B902C 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9030.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9030.s
deleted file mode 100644
index 8fe148cb1c..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9030.s
+++ /dev/null
@@ -1,5 +0,0 @@
-glabel func_808B9030
-/* 00720 808B9030 3C0E808C */  lui     $t6, %hi(func_808B9040)    ## $t6 = 808C0000
-/* 00724 808B9034 25CE9040 */  addiu   $t6, $t6, %lo(func_808B9040) ## $t6 = 808B9040
-/* 00728 808B9038 03E00008 */  jr      $ra                        
-/* 0072C 808B903C AC8E0164 */  sw      $t6, 0x0164($a0)           ## 00000164
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9040.s b/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9040.s
deleted file mode 100644
index 050c98fe08..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9040.s
+++ /dev/null
@@ -1,9 +0,0 @@
-glabel func_808B9040
-/* 00730 808B9040 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00734 808B9044 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00738 808B9048 0C22E388 */  jal     func_808B8E20              
-/* 0073C 808B904C 00000000 */  nop
-/* 00740 808B9050 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00744 808B9054 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 00748 808B9058 03E00008 */  jr      $ra                        
-/* 0074C 808B905C 00000000 */  nop
diff --git a/data/overlays/actors/z_bg_spot18_obj.data.s b/data/overlays/actors/z_bg_spot18_obj.data.s
deleted file mode 100644
index 8100ff9b36..0000000000
--- a/data/overlays/actors/z_bg_spot18_obj.data.s
+++ /dev/null
@@ -1,40 +0,0 @@
-.include "macro.inc"
-
- # assembler directives
- .set noat      # allow manual use of $at
- .set noreorder # don't insert nops after branches
- .set gp=64     # allow use of 64-bit general purpose registers
-
-.section .data
-
-.balign 16
-
-glabel Bg_Spot18_Obj_InitVars
- .word 0x00B90100, 0x00000000, 0x00AF0000, 0x0000016C
-.word BgSpot18Obj_Init
-.word BgSpot18Obj_Destroy
-.word BgSpot18Obj_Update
-.word BgSpot18Obj_Draw
-glabel D_808B90F0
- .word 0x01010100
-glabel D_808B90F4
- .word 0x3DCCCCCD, 0x3DCCCCCD
-glabel D_808B90FC
- .word 0x06002FE4, 0x0600261C
-glabel D_808B9104
- .word 0x00000000, 0x00000000
-glabel D_808B910C
- .word func_808B8A98
-.word func_808B8910
-.word func_808B8A5C
-.word func_808B8B08
-glabel D_808B911C
- .word 0xB070FFF6, 0xB06CFFFC, 0xB0F40578, 0xB0F801F4, 0x30FC0320
-glabel D_808B9130
- .word 0xB0F404B0, 0xB0F801F4, 0x30FC02BC
-glabel D_808B913C
- .word func_808B8BB4
-.word func_808B8C90
-glabel D_808B9144
- .word 0x06002BC0, 0x06002370, 0x00000000
-
diff --git a/data/overlays/actors/z_bg_spot18_obj.reloc.s b/data/overlays/actors/z_bg_spot18_obj.reloc.s
deleted file mode 100644
index 097bbc8607..0000000000
--- a/data/overlays/actors/z_bg_spot18_obj.reloc.s
+++ /dev/null
@@ -1,13 +0,0 @@
-.include "macro.inc"
-
- # assembler directives
- .set noat      # allow manual use of $at
- .set noreorder # don't insert nops after branches
- .set gp=64     # allow use of 64-bit general purpose registers
-
-.section .rodata
-
-.balign 16
-
-glabel D_808B9290
-    .incbin "baserom/ovl_Bg_Spot18_Obj", 0x980, 0x00000140
diff --git a/spec b/spec
index 0256452b1e..7fb272230d 100644
--- a/spec
+++ b/spec
@@ -1403,8 +1403,7 @@ endseg
 beginseg
     name "ovl_Bg_Spot18_Obj"
     include "build/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.o"
-    include "build/data/overlays/actors/z_bg_spot18_obj.data.o"
-    include "build/data/overlays/actors/z_bg_spot18_obj.reloc.o"
+    include "build/src/overlays/actors/ovl_Bg_Spot18_Obj/ovl_Bg_Spot18_Obj_reloc.o"
 endseg
 
 beginseg
diff --git a/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.c b/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.c
index a24ec69d86..0134e5d620 100644
--- a/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.c
+++ b/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.c
@@ -1,3 +1,9 @@
+/*
+ * File: z_bg_spot18_obj.c
+ * Overlay: Bg_Spot18_Obj
+ * Description:
+ */
+
 #include "z_bg_spot18_obj.h"
 
 #define FLAGS 0x00000000
@@ -9,7 +15,21 @@ void BgSpot18Obj_Destroy(Actor* thisx, GlobalContext* globalCtx);
 void BgSpot18Obj_Update(Actor* thisx, GlobalContext* globalCtx);
 void BgSpot18Obj_Draw(Actor* thisx, GlobalContext* globalCtx);
 
-/*
+s32 func_808B8910(BgSpot18Obj* this, GlobalContext* globalCtx);
+s32 func_808B8A5C(BgSpot18Obj* this, GlobalContext* globalCtx);
+s32 func_808B8A98(BgSpot18Obj* this, GlobalContext* globalCtx);
+s32 func_808B8B08(BgSpot18Obj* this, GlobalContext* globalCtx);
+s32 func_808B8BB4(BgSpot18Obj* this, GlobalContext* globalCtx);
+s32 func_808B8C90(BgSpot18Obj* this, GlobalContext* globalCtx);
+void func_808B8DC0(BgSpot18Obj* this);
+void func_808B8DD0(BgSpot18Obj* this, GlobalContext* globalCtx);
+void func_808B8E64(BgSpot18Obj* this);
+void func_808B8E7C(BgSpot18Obj* this, GlobalContext* globalCtx);
+void func_808B8EE0(BgSpot18Obj* this);
+void func_808B8F08(BgSpot18Obj* this, GlobalContext* globalCtx);
+void func_808B9030(BgSpot18Obj* this);
+void func_808B9040(BgSpot18Obj* this, GlobalContext* globalCtx);
+
 const ActorInit Bg_Spot18_Obj_InitVars = {
     ACTOR_BG_SPOT18_OBJ,
     ACTORTYPE_BG,
@@ -21,47 +41,252 @@ const ActorInit Bg_Spot18_Obj_InitVars = {
     (ActorFunc)BgSpot18Obj_Update,
     (ActorFunc)BgSpot18Obj_Draw,
 };
-*/
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8910.s")
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A5C.s")
+u8 D_808B90F0[2][2] = { { 0x01, 0x01 }, { 0x01, 0x00 } };
+
+f32 D_808B90F4[] = {
+    0.1f,
+    0.1f,
+};
+
+UNK_TYPE D_808B90FC[] = {
+    0x06002FE4,
+    0x0600261C,
+};
+
+u32 D_808B9104[] = {
+    0,
+    0,
+};
+
+BgSpot18ObjInitFunc D_808B910C[] = {
+    func_808B8A98,
+    func_808B8910,
+    func_808B8A5C,
+    func_808B8B08,
+};
+
+static InitChainEntry sInitChain1[] = {
+    ICHAIN_F32(minVelocityY, 65526, ICHAIN_CONTINUE),
+    ICHAIN_F32(gravity, 65532, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_F4, 1400, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_F8, 500, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_FC, 800, ICHAIN_STOP),
+};
+
+static InitChainEntry sInitChain2[] = {
+    ICHAIN_F32(unk_F4, 1200, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_F8, 500, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_FC, 700, ICHAIN_STOP),
+};
+
+BgSpot18ObjInitFunc D_808B913C[] = {
+    func_808B8BB4,
+    func_808B8C90,
+};
+
+static Gfx* sDlists[] = {
+    0x06002BC0,
+    0x06002370,
+};
+
+s32 func_808B8910(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    s32 age;
+
+    if (LINK_AGE_IN_YEARS == YEARS_ADULT) {
+        age = 1;
+    } else if (LINK_AGE_IN_YEARS == YEARS_CHILD) {
+        age = 0;
+    } else {
+        osSyncPrintf("Error : リンク年齢不詳 (%s %d)(arg_data 0x%04x)\n", "../z_bg_spot18_obj.c", 182,
+                     this->dyna.actor.params);
+        return 0;
+    }
+
+    switch (D_808B90F0[this->dyna.actor.params & 0xF][age]) {
+        case 0:
+        case 1:
+            if (D_808B90F0[this->dyna.actor.params & 0xF][age] == 0) {
+                osSyncPrintf("出現しない Object (0x%04x)\n", this->dyna.actor.params);
+            }
+            return D_808B90F0[this->dyna.actor.params & 0xF][age];
+        case 2:
+            osSyncPrintf("Error : Obj出現判定が設定されていない(%s %d)(arg_data 0x%04x)\n", "../z_bg_spot18_obj.c", 202,
+                         this->dyna.actor.params);
+            break;
+        default:
+            osSyncPrintf("Error : Obj出現判定失敗(%s %d)(arg_data 0x%04x)\n", "../z_bg_spot18_obj.c", 210,
+                         this->dyna.actor.params);
+    }
+    return 0;
+}
+
+s32 func_808B8A5C(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    Actor_SetScale(&this->dyna.actor, D_808B90F4[this->dyna.actor.params & 0xF]);
+    return 1;
+}
+
+s32 func_808B8A98(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    s32 pad[2];
+    s32 localC = 0;
+
+    DynaPolyInfo_SetActorMove(&this->dyna.actor, 0);
+    DynaPolyInfo_Alloc(D_808B90FC[this->dyna.actor.params & 0xF], &localC);
+    this->dyna.dynaPolyId = DynaPolyInfo_RegisterActor(globalCtx, &globalCtx->colCtx.dyna, &this->dyna.actor, localC);
+    return 1;
+}
+
+s32 func_808B8B08(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    this->dyna.actor.flags |= D_808B9104[this->dyna.actor.params & 0xF];
+    return 1;
+}
+
+s32 func_808B8B38(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    s32 i;
+
+    for (i = 0; i < ARRAY_COUNT(D_808B910C); i++) {
+        if (D_808B910C[i](this, globalCtx) == 0) {
+            return 0;
+        }
+    }
+    return 1;
+}
+
+s32 func_808B8BB4(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    Actor_ProcessInitChain(&this->dyna.actor, sInitChain1);
+
+    if (LINK_AGE_IN_YEARS == YEARS_CHILD) {
+        func_808B9030(this);
+    } else if (Flags_GetSwitch(globalCtx, (this->dyna.actor.params >> 8) & 0x3F)) {
+        func_808B9030(this);
+        this->dyna.actor.posRot.pos.x =
+            (Math_Sins(this->dyna.actor.posRot.rot.y) * 80.0f) + this->dyna.actor.initPosRot.pos.x;
+        this->dyna.actor.posRot.pos.z =
+            (Math_Coss(this->dyna.actor.posRot.rot.y) * 80.0f) + this->dyna.actor.initPosRot.pos.z;
+    } else {
+        func_808B8E64(this);
+    }
+    return 1;
+}
+
+s32 func_808B8C90(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    Actor_ProcessInitChain(&this->dyna.actor, sInitChain2);
+    func_808B8DC0(this);
+    return 1;
+}
+
+s32 func_808B8CC8(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    if ((D_808B913C[this->dyna.actor.params & 0xF] != NULL) &&
+        (!D_808B913C[this->dyna.actor.params & 0xF](this, globalCtx))) {
+        return 0;
+    }
+    return 1;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8A98.s")
+void BgSpot18Obj_Init(Actor* thisx, GlobalContext* globalCtx) {
+    BgSpot18Obj* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B08.s")
+    osSyncPrintf("Spot18 Object [arg_data : 0x%04x]\n", this->dyna.actor.params);
+    if (!func_808B8B38(this, globalCtx)) {
+        Actor_Kill(&this->dyna.actor);
+    } else if (!func_808B8CC8(this, globalCtx)) {
+        Actor_Kill(&this->dyna.actor);
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8B38.s")
+void BgSpot18Obj_Destroy(Actor* thisx, GlobalContext* globalCtx) {
+    BgSpot18Obj* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8BB4.s")
+    DynaPolyInfo_Free(globalCtx, &globalCtx->colCtx.dyna, this->dyna.dynaPolyId);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8C90.s")
+void func_808B8DC0(BgSpot18Obj* this) {
+    this->actionFunc = func_808B8DD0;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8CC8.s")
+void func_808B8DD0(BgSpot18Obj* this, GlobalContext* globalCtx) {
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Init.s")
+void func_808B8DDC(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    func_8002E4B4(globalCtx, &this->dyna.actor, 20.0f, 46.0f, 0.0f, 28);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Destroy.s")
+void func_808B8E20(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    Player* player = PLAYER;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DC0.s")
+    if (fabsf(this->dyna.unk_150) > 0.001f) {
+        this->dyna.unk_150 = 0.0f;
+        player->stateFlags2 &= ~0x10;
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DD0.s")
+void func_808B8E64(BgSpot18Obj* this) {
+    this->unk_168 = 20;
+    this->actionFunc = func_808B8E7C;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8DDC.s")
+void func_808B8E7C(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    if (this->dyna.unk_150 < -0.001f) {
+        if (this->unk_168 <= 0) {
+            func_808B8EE0(this);
+        }
+    } else {
+        this->unk_168 = 20;
+    }
+    func_808B8E20(this, globalCtx);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E20.s")
+void func_808B8EE0(BgSpot18Obj* this) {
+    this->actionFunc = func_808B8F08;
+    this->dyna.actor.posRot.rot.y = 0;
+    this->dyna.actor.speedXZ = 0.0f;
+    this->dyna.actor.velocity.z = 0.0f;
+    this->dyna.actor.velocity.y = 0.0f;
+    this->dyna.actor.velocity.x = 0.0f;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E64.s")
+void func_808B8F08(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    s32 pad;
+    Player* player = PLAYER;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8E7C.s")
+    Math_ApproxF(&this->dyna.actor.speedXZ, 1.2f, 0.1f);
+    Actor_MoveForward(&this->dyna.actor);
+    func_808B8DDC(this, globalCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8EE0.s")
+    if (func_800CB594(this->dyna.actor.posRot.pos.x, this->dyna.actor.posRot.pos.z, this->dyna.actor.initPosRot.pos.x,
+                      this->dyna.actor.initPosRot.pos.z) >= 6400.0f) {
+        func_808B9030(this);
+        this->dyna.actor.posRot.pos.x =
+            (Math_Sins(this->dyna.actor.posRot.rot.y) * 80.0f) + this->dyna.actor.initPosRot.pos.x;
+        this->dyna.actor.posRot.pos.z =
+            (Math_Coss(this->dyna.actor.posRot.rot.y) * 80.0f) + this->dyna.actor.initPosRot.pos.z;
+        this->dyna.unk_150 = 0.0f;
+        player->stateFlags2 &= ~0x10;
+        Flags_SetSwitch(globalCtx, (this->dyna.actor.params >> 8) & 0x3F);
+        func_80078884(0x4802);
+        Audio_PlayActorSound2(&this->dyna.actor, 0x2835);
+    } else {
+        func_8002F974(&this->dyna.actor, 0x200A);
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B8F08.s")
+void func_808B9030(BgSpot18Obj* this) {
+    this->actionFunc = func_808B9040;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9030.s")
+void func_808B9040(BgSpot18Obj* this, GlobalContext* globalCtx) {
+    func_808B8E20(this, globalCtx);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/func_808B9040.s")
+void BgSpot18Obj_Update(Actor* thisx, GlobalContext* globalCtx) {
+    BgSpot18Obj* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Update.s")
+    if (this->unk_168 > 0) {
+        this->unk_168 -= 1;
+    }
+    this->actionFunc(this, globalCtx);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Spot18_Obj/BgSpot18Obj_Draw.s")
+void BgSpot18Obj_Draw(Actor* thisx, GlobalContext* globalCtx) {
+    Gfx_DrawDListOpa(globalCtx, sDlists[thisx->params & 0xF]);
+}
diff --git a/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.h b/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.h
index ae0faf4154..22f8c770d3 100644
--- a/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.h
+++ b/src/overlays/actors/ovl_Bg_Spot18_Obj/z_bg_spot18_obj.h
@@ -6,9 +6,13 @@
 
 struct BgSpot18Obj;
 
+typedef void (*BgSpot18ObjActionFunc)(struct BgSpot18Obj*, GlobalContext*);
+typedef s32 (*BgSpot18ObjInitFunc)(struct BgSpot18Obj*, GlobalContext*);
+
 typedef struct BgSpot18Obj {
-    /* 0x0000 */ Actor actor;
-    /* 0x014C */ char unk_14C[0x20];
+    /* 0x0000 */ DynaPolyActor dyna;
+    /* 0x0164 */ BgSpot18ObjActionFunc actionFunc;
+    /* 0x0168 */ s16 unk_168;
 } BgSpot18Obj; // size = 0x016C
 
 extern const ActorInit Bg_Spot18_Obj_InitVars;
diff --git a/tools/ichaindis.py b/tools/ichaindis.py
index bb7afb7449..896dd87f01 100755
--- a/tools/ichaindis.py
+++ b/tools/ichaindis.py
@@ -30,7 +30,7 @@ def main():
         with open(args.filename, 'rb') as f:
             romData = f.read()
     except IOError:
-        print('failed to read file' + args.filename)
+        print('failed to read file ' + args.filename)
         sys.exit(1)
 
     print ('static InitChainEntry sInitChain[] = {')