diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Destroy.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Destroy.s
deleted file mode 100644
index 10334161a5..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Destroy.s
+++ /dev/null
@@ -1,19 +0,0 @@
-glabel BgGndDarkmeiro_Destroy
-/* 002B8 80878EE8 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 002BC 80878EEC AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 002C0 80878EF0 AFA40018 */  sw      $a0, 0x0018($sp)           
-/* 002C4 80878EF4 848F001C */  lh      $t7, 0x001C($a0)           ## 0000001C
-/* 002C8 80878EF8 24010001 */  addiu   $at, $zero, 0x0001         ## $at = 00000001
-/* 002CC 80878EFC 00A02025 */  or      $a0, $a1, $zero            ## $a0 = 00000000
-/* 002D0 80878F00 31F800FF */  andi    $t8, $t7, 0x00FF           ## $t8 = 00000000
-/* 002D4 80878F04 17010004 */  bne     $t8, $at, .L80878F18       
-/* 002D8 80878F08 8FB90018 */  lw      $t9, 0x0018($sp)           
-/* 002DC 80878F0C 24A50810 */  addiu   $a1, $a1, 0x0810           ## $a1 = 00000810
-/* 002E0 80878F10 0C00FB56 */  jal     DynaPolyInfo_Free
-              ## DynaPolyInfo_delReserve
-/* 002E4 80878F14 8F26014C */  lw      $a2, 0x014C($t9)           ## 0000014C
-.L80878F18:
-/* 002E8 80878F18 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 002EC 80878F1C 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 002F0 80878F20 03E00008 */  jr      $ra                        
-/* 002F4 80878F24 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Init.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Init.s
deleted file mode 100644
index a9d3e20c52..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Init.s
+++ /dev/null
@@ -1,158 +0,0 @@
-glabel BgGndDarkmeiro_Init
-/* 00090 80878CC0 27BDFFC8 */  addiu   $sp, $sp, 0xFFC8           ## $sp = FFFFFFC8
-/* 00094 80878CC4 AFB10018 */  sw      $s1, 0x0018($sp)           
-/* 00098 80878CC8 00A08825 */  or      $s1, $a1, $zero            ## $s1 = 00000000
-/* 0009C 80878CCC 3C0E8088 */  lui     $t6, %hi(func_80878F28)    ## $t6 = 80880000
-/* 000A0 80878CD0 AFBF001C */  sw      $ra, 0x001C($sp)           
-/* 000A4 80878CD4 AFB00014 */  sw      $s0, 0x0014($sp)           
-/* 000A8 80878CD8 AFA00030 */  sw      $zero, 0x0030($sp)         
-/* 000AC 80878CDC 25CE8F28 */  addiu   $t6, $t6, %lo(func_80878F28) ## $t6 = 80878F28
-/* 000B0 80878CE0 3C053DCC */  lui     $a1, 0x3DCC                ## $a1 = 3DCC0000
-/* 000B4 80878CE4 00808025 */  or      $s0, $a0, $zero            ## $s0 = 00000000
-/* 000B8 80878CE8 AC8E016C */  sw      $t6, 0x016C($a0)           ## 0000016C
-/* 000BC 80878CEC 0C00B58B */  jal     Actor_SetScale
-              
-/* 000C0 80878CF0 34A5CCCD */  ori     $a1, $a1, 0xCCCD           ## $a1 = 3DCCCCCD
-/* 000C4 80878CF4 8602001C */  lh      $v0, 0x001C($s0)           ## 0000001C
-/* 000C8 80878CF8 24010001 */  addiu   $at, $zero, 0x0001         ## $at = 00000001
-/* 000CC 80878CFC 3C0F8088 */  lui     $t7, %hi(func_808791BC)    ## $t7 = 80880000
-/* 000D0 80878D00 304200FF */  andi    $v0, $v0, 0x00FF           ## $v0 = 00000000
-/* 000D4 80878D04 50400009 */  beql    $v0, $zero, .L80878D2C     
-/* 000D8 80878D08 8E180004 */  lw      $t8, 0x0004($s0)           ## 00000004
-/* 000DC 80878D0C 1041000C */  beq     $v0, $at, .L80878D40       
-/* 000E0 80878D10 3C040601 */  lui     $a0, 0x0601                ## $a0 = 06010000
-/* 000E4 80878D14 24010002 */  addiu   $at, $zero, 0x0002         ## $at = 00000002
-/* 000E8 80878D18 1041003B */  beq     $v0, $at, .L80878E08       
-/* 000EC 80878D1C 3C088088 */  lui     $t0, %hi(func_80878F34)    ## $t0 = 80880000
-/* 000F0 80878D20 1000006D */  beq     $zero, $zero, .L80878ED8   
-/* 000F4 80878D24 8FBF001C */  lw      $ra, 0x001C($sp)           
-/* 000F8 80878D28 8E180004 */  lw      $t8, 0x0004($s0)           ## 00000004
-.L80878D2C:
-/* 000FC 80878D2C 25EF91BC */  addiu   $t7, $t7, %lo(func_808791BC) ## $t7 = 808791BC
-/* 00100 80878D30 AE0F0134 */  sw      $t7, 0x0134($s0)           ## 00000134
-/* 00104 80878D34 37190080 */  ori     $t9, $t8, 0x0080           ## $t9 = 00000080
-/* 00108 80878D38 10000066 */  beq     $zero, $zero, .L80878ED4   
-/* 0010C 80878D3C AE190004 */  sw      $t9, 0x0004($s0)           ## 00000004
-.L80878D40:
-/* 00110 80878D40 2484C080 */  addiu   $a0, $a0, 0xC080           ## $a0 = 0600C080
-/* 00114 80878D44 0C010620 */  jal     DynaPolyInfo_Alloc
-              
-/* 00118 80878D48 27A50030 */  addiu   $a1, $sp, 0x0030           ## $a1 = FFFFFFF8
-/* 0011C 80878D4C 26250810 */  addiu   $a1, $s1, 0x0810           ## $a1 = 00000810
-/* 00120 80878D50 AFA50020 */  sw      $a1, 0x0020($sp)           
-/* 00124 80878D54 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 00128 80878D58 02003025 */  or      $a2, $s0, $zero            ## $a2 = 00000000
-/* 0012C 80878D5C 0C00FA9D */  jal     DynaPolyInfo_RegisterActor
-              ## DynaPolyInfo_setActor
-/* 00130 80878D60 8FA70030 */  lw      $a3, 0x0030($sp)           
-/* 00134 80878D64 8608001C */  lh      $t0, 0x001C($s0)           ## 0000001C
-/* 00138 80878D68 2401003F */  addiu   $at, $zero, 0x003F         ## $at = 0000003F
-/* 0013C 80878D6C AE02014C */  sw      $v0, 0x014C($s0)           ## 0000014C
-/* 00140 80878D70 00084A03 */  sra     $t1, $t0,  8               
-/* 00144 80878D74 312A003F */  andi    $t2, $t1, 0x003F           ## $t2 = 00000000
-/* 00148 80878D78 15410008 */  bne     $t2, $at, .L80878D9C       
-/* 0014C 80878D7C 3C0D8088 */  lui     $t5, %hi(func_808791E8)    ## $t5 = 80880000
-/* 00150 80878D80 3C0B8088 */  lui     $t3, %hi(func_80879128)    ## $t3 = 80880000
-/* 00154 80878D84 3C0C8088 */  lui     $t4, %hi(func_80879334)    ## $t4 = 80880000
-/* 00158 80878D88 256B9128 */  addiu   $t3, $t3, %lo(func_80879128) ## $t3 = 80879128
-/* 0015C 80878D8C 258C9334 */  addiu   $t4, $t4, %lo(func_80879334) ## $t4 = 80879334
-/* 00160 80878D90 AE0B016C */  sw      $t3, 0x016C($s0)           ## 0000016C
-/* 00164 80878D94 1000004F */  beq     $zero, $zero, .L80878ED4   
-/* 00168 80878D98 AE0C0134 */  sw      $t4, 0x0134($s0)           ## 00000134
-.L80878D9C:
-/* 0016C 80878D9C 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00170 80878DA0 A6000168 */  sh      $zero, 0x0168($s0)         ## 00000168
-/* 00174 80878DA4 86020168 */  lh      $v0, 0x0168($s0)           ## 00000168
-/* 00178 80878DA8 3C0E8088 */  lui     $t6, %hi(func_80879134)    ## $t6 = 80880000
-/* 0017C 80878DAC 25AD91E8 */  addiu   $t5, $t5, %lo(func_808791E8) ## $t5 = 808791E8
-/* 00180 80878DB0 25CE9134 */  addiu   $t6, $t6, %lo(func_80879134) ## $t6 = 80879134
-/* 00184 80878DB4 00052A03 */  sra     $a1, $a1,  8               
-/* 00188 80878DB8 AE0D0134 */  sw      $t5, 0x0134($s0)           ## 00000134
-/* 0018C 80878DBC AE0E016C */  sw      $t6, 0x016C($s0)           ## 0000016C
-/* 00190 80878DC0 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00194 80878DC4 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 00198 80878DC8 A6020166 */  sh      $v0, 0x0166($s0)           ## 00000166
-/* 0019C 80878DCC 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 001A0 80878DD0 A6020164 */  sh      $v0, 0x0164($s0)           ## 00000164
-/* 001A4 80878DD4 14400006 */  bne     $v0, $zero, .L80878DF0     
-/* 001A8 80878DD8 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 001AC 80878DDC 8FA50020 */  lw      $a1, 0x0020($sp)           
-/* 001B0 80878DE0 0C00FAFE */  jal     func_8003EBF8              
-/* 001B4 80878DE4 8E06014C */  lw      $a2, 0x014C($s0)           ## 0000014C
-/* 001B8 80878DE8 1000003B */  beq     $zero, $zero, .L80878ED8   
-/* 001BC 80878DEC 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L80878DF0:
-/* 001C0 80878DF0 96180164 */  lhu     $t8, 0x0164($s0)           ## 00000164
-/* 001C4 80878DF4 240F0040 */  addiu   $t7, $zero, 0x0040         ## $t7 = 00000040
-/* 001C8 80878DF8 A60F0166 */  sh      $t7, 0x0166($s0)           ## 00000166
-/* 001CC 80878DFC 37190002 */  ori     $t9, $t8, 0x0002           ## $t9 = 00000002
-/* 001D0 80878E00 10000034 */  beq     $zero, $zero, .L80878ED4   
-/* 001D4 80878E04 A6190164 */  sh      $t9, 0x0164($s0)           ## 00000164
-.L80878E08:
-/* 001D8 80878E08 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 001DC 80878E0C A6000168 */  sh      $zero, 0x0168($s0)         ## 00000168
-/* 001E0 80878E10 86020168 */  lh      $v0, 0x0168($s0)           ## 00000168
-/* 001E4 80878E14 00052A03 */  sra     $a1, $a1,  8               
-/* 001E8 80878E18 25088F34 */  addiu   $t0, $t0, %lo(func_80878F34) ## $t0 = FFFF8F34
-/* 001EC 80878E1C 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 001F0 80878E20 AE08016C */  sw      $t0, 0x016C($s0)           ## 0000016C
-/* 001F4 80878E24 AE000134 */  sw      $zero, 0x0134($s0)         ## 00000134
-/* 001F8 80878E28 24A50001 */  addiu   $a1, $a1, 0x0001           ## $a1 = 00000001
-/* 001FC 80878E2C 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 00200 80878E30 A6020166 */  sh      $v0, 0x0166($s0)           ## 00000166
-/* 00204 80878E34 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 00208 80878E38 A6020164 */  sh      $v0, 0x0164($s0)           ## 00000164
-/* 0020C 80878E3C 50400007 */  beql    $v0, $zero, .L80878E5C     
-/* 00210 80878E40 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00214 80878E44 960A0164 */  lhu     $t2, 0x0164($s0)           ## 00000164
-/* 00218 80878E48 24090040 */  addiu   $t1, $zero, 0x0040         ## $t1 = 00000040
-/* 0021C 80878E4C A6090166 */  sh      $t1, 0x0166($s0)           ## 00000166
-/* 00220 80878E50 354B0004 */  ori     $t3, $t2, 0x0004           ## $t3 = 00000004
-/* 00224 80878E54 A60B0164 */  sh      $t3, 0x0164($s0)           ## 00000164
-/* 00228 80878E58 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L80878E5C:
-/* 0022C 80878E5C 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 00230 80878E60 00052A03 */  sra     $a1, $a1,  8               
-/* 00234 80878E64 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00238 80878E68 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 0023C 80878E6C 24A50002 */  addiu   $a1, $a1, 0x0002           ## $a1 = 00000002
-/* 00240 80878E70 50400007 */  beql    $v0, $zero, .L80878E90     
-/* 00244 80878E74 860F0166 */  lh      $t7, 0x0166($s0)           ## 00000166
-/* 00248 80878E78 960D0164 */  lhu     $t5, 0x0164($s0)           ## 00000164
-/* 0024C 80878E7C 240C0040 */  addiu   $t4, $zero, 0x0040         ## $t4 = 00000040
-/* 00250 80878E80 A60C0168 */  sh      $t4, 0x0168($s0)           ## 00000168
-/* 00254 80878E84 35AE0008 */  ori     $t6, $t5, 0x0008           ## $t6 = 00000008
-/* 00258 80878E88 A60E0164 */  sh      $t6, 0x0164($s0)           ## 00000164
-/* 0025C 80878E8C 860F0166 */  lh      $t7, 0x0166($s0)           ## 00000166
-.L80878E90:
-/* 00260 80878E90 55E00005 */  bnel    $t7, $zero, .L80878EA8     
-/* 00264 80878E94 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00268 80878E98 86180168 */  lh      $t8, 0x0168($s0)           ## 00000168
-/* 0026C 80878E9C 53000009 */  beql    $t8, $zero, .L80878EC4     
-/* 00270 80878EA0 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00274 80878EA4 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L80878EA8:
-/* 00278 80878EA8 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 0027C 80878EAC 00052A03 */  sra     $a1, $a1,  8               
-/* 00280 80878EB0 0C00B2DD */  jal     Flags_SetSwitch
-              
-/* 00284 80878EB4 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00288 80878EB8 10000007 */  beq     $zero, $zero, .L80878ED8   
-/* 0028C 80878EBC 8FBF001C */  lw      $ra, 0x001C($sp)           
-/* 00290 80878EC0 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L80878EC4:
-/* 00294 80878EC4 02202025 */  or      $a0, $s1, $zero            ## $a0 = 00000000
-/* 00298 80878EC8 00052A03 */  sra     $a1, $a1,  8               
-/* 0029C 80878ECC 0C00B2ED */  jal     Flags_UnsetSwitch
-              
-/* 002A0 80878ED0 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-.L80878ED4:
-/* 002A4 80878ED4 8FBF001C */  lw      $ra, 0x001C($sp)           
-.L80878ED8:
-/* 002A8 80878ED8 8FB00014 */  lw      $s0, 0x0014($sp)           
-/* 002AC 80878EDC 8FB10018 */  lw      $s1, 0x0018($sp)           
-/* 002B0 80878EE0 03E00008 */  jr      $ra                        
-/* 002B4 80878EE4 27BD0038 */  addiu   $sp, $sp, 0x0038           ## $sp = 00000000
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Update.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Update.s
deleted file mode 100644
index db72c9925c..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Update.s
+++ /dev/null
@@ -1,10 +0,0 @@
-glabel BgGndDarkmeiro_Update
-/* 00568 80879198 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 0056C 8087919C AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00570 808791A0 8C99016C */  lw      $t9, 0x016C($a0)           ## 0000016C
-/* 00574 808791A4 0320F809 */  jalr    $ra, $t9                   
-/* 00578 808791A8 00000000 */  nop
-/* 0057C 808791AC 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00580 808791B0 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 00584 808791B4 03E00008 */  jr      $ra                        
-/* 00588 808791B8 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878C30.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878C30.s
deleted file mode 100644
index 45fa547a06..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878C30.s
+++ /dev/null
@@ -1,40 +0,0 @@
-glabel func_80878C30
-/* 00000 80878C30 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00004 80878C34 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 00008 80878C38 AFA5001C */  sw      $a1, 0x001C($sp)           
-/* 0000C 80878C3C 948E0164 */  lhu     $t6, 0x0164($a0)           ## 00000164
-/* 00010 80878C40 00803825 */  or      $a3, $a0, $zero            ## $a3 = 00000000
-/* 00014 80878C44 31CF0002 */  andi    $t7, $t6, 0x0002           ## $t7 = 00000000
-/* 00018 80878C48 51E0000F */  beql    $t7, $zero, .L80878C88     
-/* 0001C 80878C4C 84EA0166 */  lh      $t2, 0x0166($a3)           ## 00000166
-/* 00020 80878C50 84980166 */  lh      $t8, 0x0166($a0)           ## 00000166
-/* 00024 80878C54 00A02025 */  or      $a0, $a1, $zero            ## $a0 = 00000000
-/* 00028 80878C58 24A50810 */  addiu   $a1, $a1, 0x0810           ## $a1 = 00000810
-/* 0002C 80878C5C 57000015 */  bnel    $t8, $zero, .L80878CB4     
-/* 00030 80878C60 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00034 80878C64 8CE6014C */  lw      $a2, 0x014C($a3)           ## 0000014C
-/* 00038 80878C68 0C00FAFE */  jal     func_8003EBF8              
-/* 0003C 80878C6C AFA70018 */  sw      $a3, 0x0018($sp)           
-/* 00040 80878C70 8FA70018 */  lw      $a3, 0x0018($sp)           
-/* 00044 80878C74 94E80164 */  lhu     $t0, 0x0164($a3)           ## 00000164
-/* 00048 80878C78 3109FFFD */  andi    $t1, $t0, 0xFFFD           ## $t1 = 00000000
-/* 0004C 80878C7C 1000000C */  beq     $zero, $zero, .L80878CB0   
-/* 00050 80878C80 A4E90164 */  sh      $t1, 0x0164($a3)           ## 00000164
-/* 00054 80878C84 84EA0166 */  lh      $t2, 0x0166($a3)           ## 00000166
-.L80878C88:
-/* 00058 80878C88 8FA4001C */  lw      $a0, 0x001C($sp)           
-/* 0005C 80878C8C 11400008 */  beq     $t2, $zero, .L80878CB0     
-/* 00060 80878C90 24850810 */  addiu   $a1, $a0, 0x0810           ## $a1 = 00000810
-/* 00064 80878C94 8CE6014C */  lw      $a2, 0x014C($a3)           ## 0000014C
-/* 00068 80878C98 0C00FB14 */  jal     func_8003EC50              
-/* 0006C 80878C9C AFA70018 */  sw      $a3, 0x0018($sp)           
-/* 00070 80878CA0 8FA70018 */  lw      $a3, 0x0018($sp)           
-/* 00074 80878CA4 94EC0164 */  lhu     $t4, 0x0164($a3)           ## 00000164
-/* 00078 80878CA8 358D0002 */  ori     $t5, $t4, 0x0002           ## $t5 = 00000002
-/* 0007C 80878CAC A4ED0164 */  sh      $t5, 0x0164($a3)           ## 00000164
-.L80878CB0:
-/* 00080 80878CB0 8FBF0014 */  lw      $ra, 0x0014($sp)           
-.L80878CB4:
-/* 00084 80878CB4 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 00088 80878CB8 03E00008 */  jr      $ra                        
-/* 0008C 80878CBC 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F28.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F28.s
deleted file mode 100644
index d0698a8603..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F28.s
+++ /dev/null
@@ -1,4 +0,0 @@
-glabel func_80878F28
-/* 002F8 80878F28 AFA40000 */  sw      $a0, 0x0000($sp)           
-/* 002FC 80878F2C 03E00008 */  jr      $ra                        
-/* 00300 80878F30 AFA50004 */  sw      $a1, 0x0004($sp)           
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F34.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F34.s
deleted file mode 100644
index 12c64a6f1a..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F34.s
+++ /dev/null
@@ -1,147 +0,0 @@
-glabel func_80878F34
-/* 00304 80878F34 27BDFFD8 */  addiu   $sp, $sp, 0xFFD8           ## $sp = FFFFFFD8
-/* 00308 80878F38 AFB00020 */  sw      $s0, 0x0020($sp)           
-/* 0030C 80878F3C 00808025 */  or      $s0, $a0, $zero            ## $s0 = 00000000
-/* 00310 80878F40 AFBF0024 */  sw      $ra, 0x0024($sp)           
-/* 00314 80878F44 AFA5002C */  sw      $a1, 0x002C($sp)           
-/* 00318 80878F48 00A02025 */  or      $a0, $a1, $zero            ## $a0 = 00000000
-/* 0031C 80878F4C 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00320 80878F50 00052A03 */  sra     $a1, $a1,  8               
-/* 00324 80878F54 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00328 80878F58 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 0032C 80878F5C 24A50001 */  addiu   $a1, $a1, 0x0001           ## $a1 = 00000001
-/* 00330 80878F60 50400023 */  beql    $v0, $zero, .L80878FF0     
-/* 00334 80878F64 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00338 80878F68 96020164 */  lhu     $v0, 0x0164($s0)           ## 00000164
-/* 0033C 80878F6C 24090130 */  addiu   $t1, $zero, 0x0130         ## $t1 = 00000130
-/* 00340 80878F70 24042881 */  addiu   $a0, $zero, 0x2881         ## $a0 = 00002881
-/* 00344 80878F74 304E0004 */  andi    $t6, $v0, 0x0004           ## $t6 = 00000000
-/* 00348 80878F78 11C00010 */  beq     $t6, $zero, .L80878FBC     
-/* 0034C 80878F7C 34480004 */  ori     $t0, $v0, 0x0004           ## $t0 = 00000004
-/* 00350 80878F80 86030166 */  lh      $v1, 0x0166($s0)           ## 00000166
-/* 00354 80878F84 18600003 */  blez    $v1, .L80878F94            
-/* 00358 80878F88 246FFFFF */  addiu   $t7, $v1, 0xFFFF           ## $t7 = FFFFFFFF
-/* 0035C 80878F8C 10000017 */  beq     $zero, $zero, .L80878FEC   
-/* 00360 80878F90 A60F0166 */  sh      $t7, 0x0166($s0)           ## 00000166
-.L80878F94:
-/* 00364 80878F94 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 00368 80878F98 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 0036C 80878F9C 00052A03 */  sra     $a1, $a1,  8               
-/* 00370 80878FA0 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00374 80878FA4 0C00B2ED */  jal     Flags_UnsetSwitch
-              
-/* 00378 80878FA8 24A50001 */  addiu   $a1, $a1, 0x0001           ## $a1 = 00000001
-/* 0037C 80878FAC 96180164 */  lhu     $t8, 0x0164($s0)           ## 00000164
-/* 00380 80878FB0 3319FFFB */  andi    $t9, $t8, 0xFFFB           ## $t9 = 00000000
-/* 00384 80878FB4 1000000D */  beq     $zero, $zero, .L80878FEC   
-/* 00388 80878FB8 A6190164 */  sh      $t9, 0x0164($s0)           ## 00000164
-.L80878FBC:
-/* 0038C 80878FBC 3C0A8013 */  lui     $t2, %hi(D_801333E0)
-/* 00390 80878FC0 3C0B8013 */  lui     $t3, %hi(D_801333E8)
-/* 00394 80878FC4 A6080164 */  sh      $t0, 0x0164($s0)           ## 00000164
-/* 00398 80878FC8 A6090166 */  sh      $t1, 0x0166($s0)           ## 00000166
-/* 0039C 80878FCC 256B33E8 */  addiu   $t3, %lo(D_801333E8)
-/* 003A0 80878FD0 254733E0 */  addiu   $a3, $t2, %lo(D_801333E0)
-/* 003A4 80878FD4 3C058013 */  lui     $a1, %hi(D_801333D4)
-/* 003A8 80878FD8 24A533D4 */  addiu   $a1, %lo(D_801333D4)
-/* 003AC 80878FDC AFA70010 */  sw      $a3, 0x0010($sp)           
-/* 003B0 80878FE0 AFAB0014 */  sw      $t3, 0x0014($sp)           
-/* 003B4 80878FE4 0C03DCE3 */  jal     Audio_PlaySoundGeneral
-              
-/* 003B8 80878FE8 24060004 */  addiu   $a2, $zero, 0x0004         ## $a2 = 00000004
-.L80878FEC:
-/* 003BC 80878FEC 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L80878FF0:
-/* 003C0 80878FF0 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 003C4 80878FF4 00052A03 */  sra     $a1, $a1,  8               
-/* 003C8 80878FF8 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 003CC 80878FFC 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 003D0 80879000 24A50002 */  addiu   $a1, $a1, 0x0002           ## $a1 = 00000002
-/* 003D4 80879004 50400023 */  beql    $v0, $zero, .L80879094     
-/* 003D8 80879008 86030166 */  lh      $v1, 0x0166($s0)           ## 00000166
-/* 003DC 8087900C 96020164 */  lhu     $v0, 0x0164($s0)           ## 00000164
-/* 003E0 80879010 3C078013 */  lui     $a3, %hi(D_801333E0)
-/* 003E4 80879014 24E733E0 */  addiu   $a3, %lo(D_801333E0)
-/* 003E8 80879018 304C0008 */  andi    $t4, $v0, 0x0008           ## $t4 = 00000000
-/* 003EC 8087901C 11800010 */  beq     $t4, $zero, .L80879060     
-/* 003F0 80879020 34580008 */  ori     $t8, $v0, 0x0008           ## $t8 = 00000008
-/* 003F4 80879024 86020168 */  lh      $v0, 0x0168($s0)           ## 00000168
-/* 003F8 80879028 18400003 */  blez    $v0, .L80879038            
-/* 003FC 8087902C 244DFFFF */  addiu   $t5, $v0, 0xFFFF           ## $t5 = FFFFFFFF
-/* 00400 80879030 10000017 */  beq     $zero, $zero, .L80879090   
-/* 00404 80879034 A60D0168 */  sh      $t5, 0x0168($s0)           ## 00000168
-.L80879038:
-/* 00408 80879038 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 0040C 8087903C 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 00410 80879040 00052A03 */  sra     $a1, $a1,  8               
-/* 00414 80879044 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 00418 80879048 0C00B2ED */  jal     Flags_UnsetSwitch
-              
-/* 0041C 8087904C 24A50002 */  addiu   $a1, $a1, 0x0002           ## $a1 = 00000002
-/* 00420 80879050 960E0164 */  lhu     $t6, 0x0164($s0)           ## 00000164
-/* 00424 80879054 31CFFFF7 */  andi    $t7, $t6, 0xFFF7           ## $t7 = 00000000
-/* 00428 80879058 1000000D */  beq     $zero, $zero, .L80879090   
-/* 0042C 8087905C A60F0164 */  sh      $t7, 0x0164($s0)           ## 00000164
-.L80879060:
-/* 00430 80879060 24190130 */  addiu   $t9, $zero, 0x0130         ## $t9 = 00000130
-/* 00434 80879064 3C088013 */  lui     $t0, %hi(D_801333E8)
-/* 00438 80879068 A6180164 */  sh      $t8, 0x0164($s0)           ## 00000164
-/* 0043C 8087906C A6190168 */  sh      $t9, 0x0168($s0)           ## 00000168
-/* 00440 80879070 250833E8 */  addiu   $t0, %lo(D_801333E8)
-/* 00444 80879074 3C058013 */  lui     $a1, %hi(D_801333D4)
-/* 00448 80879078 24A533D4 */  addiu   $a1, %lo(D_801333D4)
-/* 0044C 8087907C AFA80014 */  sw      $t0, 0x0014($sp)           
-/* 00450 80879080 AFA70010 */  sw      $a3, 0x0010($sp)           
-/* 00454 80879084 24042881 */  addiu   $a0, $zero, 0x2881         ## $a0 = 00002881
-/* 00458 80879088 0C03DCE3 */  jal     Audio_PlaySoundGeneral
-              
-/* 0045C 8087908C 24060004 */  addiu   $a2, $zero, 0x0004         ## $a2 = 00000004
-.L80879090:
-/* 00460 80879090 86030166 */  lh      $v1, 0x0166($s0)           ## 00000166
-.L80879094:
-/* 00464 80879094 86020168 */  lh      $v0, 0x0168($s0)           ## 00000168
-/* 00468 80879098 00032C00 */  sll     $a1, $v1, 16               
-/* 0046C 8087909C 0062082A */  slt     $at, $v1, $v0              
-/* 00470 808790A0 10200004 */  beq     $at, $zero, .L808790B4     
-/* 00474 808790A4 00052C03 */  sra     $a1, $a1, 16               
-/* 00478 808790A8 00022C00 */  sll     $a1, $v0, 16               
-/* 0047C 808790AC 10000001 */  beq     $zero, $zero, .L808790B4   
-/* 00480 808790B0 00052C03 */  sra     $a1, $a1, 16               
-.L808790B4:
-/* 00484 808790B4 58A00005 */  blezl   $a1, .L808790CC            
-/* 00488 808790B8 28610040 */  slti    $at, $v1, 0x0040           
-/* 0048C 808790BC 0C00BE65 */  jal     func_8002F994              
-/* 00490 808790C0 02002025 */  or      $a0, $s0, $zero            ## $a0 = 00000000
-/* 00494 808790C4 86030166 */  lh      $v1, 0x0166($s0)           ## 00000166
-/* 00498 808790C8 28610040 */  slti    $at, $v1, 0x0040           
-.L808790CC:
-/* 0049C 808790CC 50200006 */  beql    $at, $zero, .L808790E8     
-/* 004A0 808790D0 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 004A4 808790D4 86090168 */  lh      $t1, 0x0168($s0)           ## 00000168
-/* 004A8 808790D8 29210040 */  slti    $at, $t1, 0x0040           
-/* 004AC 808790DC 54200009 */  bnel    $at, $zero, .L80879104     
-/* 004B0 808790E0 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-/* 004B4 808790E4 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L808790E8:
-/* 004B8 808790E8 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 004BC 808790EC 00052A03 */  sra     $a1, $a1,  8               
-/* 004C0 808790F0 0C00B2DD */  jal     Flags_SetSwitch
-              
-/* 004C4 808790F4 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 004C8 808790F8 10000007 */  beq     $zero, $zero, .L80879118   
-/* 004CC 808790FC 8FBF0024 */  lw      $ra, 0x0024($sp)           
-/* 004D0 80879100 8605001C */  lh      $a1, 0x001C($s0)           ## 0000001C
-.L80879104:
-/* 004D4 80879104 8FA4002C */  lw      $a0, 0x002C($sp)           
-/* 004D8 80879108 00052A03 */  sra     $a1, $a1,  8               
-/* 004DC 8087910C 0C00B2ED */  jal     Flags_UnsetSwitch
-              
-/* 004E0 80879110 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 004E4 80879114 8FBF0024 */  lw      $ra, 0x0024($sp)           
-.L80879118:
-/* 004E8 80879118 8FB00020 */  lw      $s0, 0x0020($sp)           
-/* 004EC 8087911C 27BD0028 */  addiu   $sp, $sp, 0x0028           ## $sp = 00000000
-/* 004F0 80879120 03E00008 */  jr      $ra                        
-/* 004F4 80879124 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879128.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879128.s
deleted file mode 100644
index 775ef428c2..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879128.s
+++ /dev/null
@@ -1,4 +0,0 @@
-glabel func_80879128
-/* 004F8 80879128 AFA40000 */  sw      $a0, 0x0000($sp)           
-/* 004FC 8087912C 03E00008 */  jr      $ra                        
-/* 00500 80879130 AFA50004 */  sw      $a1, 0x0004($sp)           
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879134.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879134.s
deleted file mode 100644
index 7c80ceccd5..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879134.s
+++ /dev/null
@@ -1,29 +0,0 @@
-glabel func_80879134
-/* 00504 80879134 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00508 80879138 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 0050C 8087913C AFA5001C */  sw      $a1, 0x001C($sp)           
-/* 00510 80879140 84820166 */  lh      $v0, 0x0166($a0)           ## 00000166
-/* 00514 80879144 00803025 */  or      $a2, $a0, $zero            ## $a2 = 00000000
-/* 00518 80879148 18400002 */  blez    $v0, .L80879154            
-/* 0051C 8087914C 244EFFFF */  addiu   $t6, $v0, 0xFFFF           ## $t6 = FFFFFFFF
-/* 00520 80879150 A48E0166 */  sh      $t6, 0x0166($a0)           ## 00000166
-.L80879154:
-/* 00524 80879154 84C5001C */  lh      $a1, 0x001C($a2)           ## 0000001C
-/* 00528 80879158 AFA60018 */  sw      $a2, 0x0018($sp)           
-/* 0052C 8087915C 8FA4001C */  lw      $a0, 0x001C($sp)           
-/* 00530 80879160 00052A03 */  sra     $a1, $a1,  8               
-/* 00534 80879164 0C00B2D0 */  jal     Flags_GetSwitch
-              
-/* 00538 80879168 30A5003F */  andi    $a1, $a1, 0x003F           ## $a1 = 00000000
-/* 0053C 8087916C 10400003 */  beq     $v0, $zero, .L8087917C     
-/* 00540 80879170 8FA60018 */  lw      $a2, 0x0018($sp)           
-/* 00544 80879174 240F0040 */  addiu   $t7, $zero, 0x0040         ## $t7 = 00000040
-/* 00548 80879178 A4CF0166 */  sh      $t7, 0x0166($a2)           ## 00000166
-.L8087917C:
-/* 0054C 8087917C 00C02025 */  or      $a0, $a2, $zero            ## $a0 = 00000000
-/* 00550 80879180 0C21E30C */  jal     func_80878C30              
-/* 00554 80879184 8FA5001C */  lw      $a1, 0x001C($sp)           
-/* 00558 80879188 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 0055C 8087918C 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 00560 80879190 03E00008 */  jr      $ra                        
-/* 00564 80879194 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791BC.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791BC.s
deleted file mode 100644
index 5ab2a22ca8..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791BC.s
+++ /dev/null
@@ -1,13 +0,0 @@
-glabel func_808791BC
-/* 0058C 808791BC 27BDFFE8 */  addiu   $sp, $sp, 0xFFE8           ## $sp = FFFFFFE8
-/* 00590 808791C0 AFA40018 */  sw      $a0, 0x0018($sp)           
-/* 00594 808791C4 00A02025 */  or      $a0, $a1, $zero            ## $a0 = 00000000
-/* 00598 808791C8 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 0059C 808791CC 3C050601 */  lui     $a1, 0x0601                ## $a1 = 06010000
-/* 005A0 808791D0 0C00D4C9 */  jal     Gfx_DrawDListXlu
-              
-/* 005A4 808791D4 24A588B0 */  addiu   $a1, $a1, 0x88B0           ## $a1 = 060088B0
-/* 005A8 808791D8 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 005AC 808791DC 27BD0018 */  addiu   $sp, $sp, 0x0018           ## $sp = 00000000
-/* 005B0 808791E0 03E00008 */  jr      $ra                        
-/* 005B4 808791E4 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791E8.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791E8.s
deleted file mode 100644
index 85bca994c6..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791E8.s
+++ /dev/null
@@ -1,102 +0,0 @@
-.rdata
-glabel D_808793E0
-    .asciz "../z_bg_gnd_darkmeiro.c"
-    .balign 4
-
-glabel D_808793F8
-    .asciz "../z_bg_gnd_darkmeiro.c"
-    .balign 4
-
-.text
-glabel func_808791E8
-/* 005B8 808791E8 27BDFFB8 */  addiu   $sp, $sp, 0xFFB8           ## $sp = FFFFFFB8
-/* 005BC 808791EC AFBF001C */  sw      $ra, 0x001C($sp)           
-/* 005C0 808791F0 AFB00018 */  sw      $s0, 0x0018($sp)           
-/* 005C4 808791F4 AFA5004C */  sw      $a1, 0x004C($sp)           
-/* 005C8 808791F8 84830166 */  lh      $v1, 0x0166($a0)           ## 00000166
-/* 005CC 808791FC 00808025 */  or      $s0, $a0, $zero            ## $s0 = 00000000
-/* 005D0 80879200 00031400 */  sll     $v0, $v1, 16               
-/* 005D4 80879204 00021403 */  sra     $v0, $v0, 16               
-/* 005D8 80879208 10400045 */  beq     $v0, $zero, .L80879320     
-/* 005DC 8087920C 28410041 */  slti    $at, $v0, 0x0041           
-/* 005E0 80879210 5420000B */  bnel    $at, $zero, .L80879240     
-/* 005E4 80879214 28410011 */  slti    $at, $v0, 0x0011           
-/* 005E8 80879218 84820168 */  lh      $v0, 0x0168($a0)           ## 00000168
-/* 005EC 8087921C 240F007F */  addiu   $t7, $zero, 0x007F         ## $t7 = 0000007F
-/* 005F0 80879220 28410078 */  slti    $at, $v0, 0x0078           
-/* 005F4 80879224 10200003 */  beq     $at, $zero, .L80879234     
-/* 005F8 80879228 244E0008 */  addiu   $t6, $v0, 0x0008           ## $t6 = 00000008
-/* 005FC 8087922C 1000001D */  beq     $zero, $zero, .L808792A4   
-/* 00600 80879230 A48E0168 */  sh      $t6, 0x0168($a0)           ## 00000168
-.L80879234:
-/* 00604 80879234 1000001B */  beq     $zero, $zero, .L808792A4   
-/* 00608 80879238 A60F0168 */  sh      $t7, 0x0168($s0)           ## 00000168
-/* 0060C 8087923C 28410011 */  slti    $at, $v0, 0x0011           
-.L80879240:
-/* 00610 80879240 14200017 */  bne     $at, $zero, .L808792A0     
-/* 00614 80879244 000258C0 */  sll     $t3, $v0,  3               
-/* 00618 80879248 00602025 */  or      $a0, $v1, $zero            ## $a0 = 00000000
-/* 0061C 8087924C 00042300 */  sll     $a0, $a0, 12               
-/* 00620 80879250 00042400 */  sll     $a0, $a0, 16               
-/* 00624 80879254 0C01DE0D */  jal     Math_Coss
-              ## coss?
-/* 00628 80879258 00042403 */  sra     $a0, $a0, 16               
-/* 0062C 8087925C 3C014280 */  lui     $at, 0x4280                ## $at = 42800000
-/* 00630 80879260 44812000 */  mtc1    $at, $f4                   ## $f4 = 64.00
-/* 00634 80879264 3C0142FE */  lui     $at, 0x42FE                ## $at = 42FE0000
-/* 00638 80879268 44814000 */  mtc1    $at, $f8                   ## $f8 = 127.00
-/* 0063C 8087926C 46040182 */  mul.s   $f6, $f0, $f4              
-/* 00640 80879270 240A007F */  addiu   $t2, $zero, 0x007F         ## $t2 = 0000007F
-/* 00644 80879274 46083280 */  add.s   $f10, $f6, $f8             
-/* 00648 80879278 4600540D */  trunc.w.s $f16, $f10                 
-/* 0064C 8087927C 44198000 */  mfc1    $t9, $f16                  
-/* 00650 80879280 00000000 */  nop
-/* 00654 80879284 A6190168 */  sh      $t9, 0x0168($s0)           ## 00000168
-/* 00658 80879288 86090168 */  lh      $t1, 0x0168($s0)           ## 00000168
-/* 0065C 8087928C 29210080 */  slti    $at, $t1, 0x0080           
-/* 00660 80879290 54200005 */  bnel    $at, $zero, .L808792A8     
-/* 00664 80879294 8FAC004C */  lw      $t4, 0x004C($sp)           
-/* 00668 80879298 10000002 */  beq     $zero, $zero, .L808792A4   
-/* 0066C 8087929C A60A0168 */  sh      $t2, 0x0168($s0)           ## 00000168
-.L808792A0:
-/* 00670 808792A0 A60B0168 */  sh      $t3, 0x0168($s0)           ## 00000168
-.L808792A4:
-/* 00674 808792A4 8FAC004C */  lw      $t4, 0x004C($sp)           
-.L808792A8:
-/* 00678 808792A8 3C068088 */  lui     $a2, %hi(D_808793E0)       ## $a2 = 80880000
-/* 0067C 808792AC 24C693E0 */  addiu   $a2, $a2, %lo(D_808793E0)  ## $a2 = 808793E0
-/* 00680 808792B0 8D850000 */  lw      $a1, 0x0000($t4)           ## 00000000
-/* 00684 808792B4 27A4002C */  addiu   $a0, $sp, 0x002C           ## $a0 = FFFFFFE4
-/* 00688 808792B8 2407017A */  addiu   $a3, $zero, 0x017A         ## $a3 = 0000017A
-/* 0068C 808792BC 0C031AB1 */  jal     Graph_OpenDisps              
-/* 00690 808792C0 AFA5003C */  sw      $a1, 0x003C($sp)           
-/* 00694 808792C4 8FA8003C */  lw      $t0, 0x003C($sp)           
-/* 00698 808792C8 3C0EFA00 */  lui     $t6, 0xFA00                ## $t6 = FA000000
-/* 0069C 808792CC 3C01C6CA */  lui     $at, 0xC6CA                ## $at = C6CA0000
-/* 006A0 808792D0 8D0302D0 */  lw      $v1, 0x02D0($t0)           ## 000002D0
-/* 006A4 808792D4 3421D000 */  ori     $at, $at, 0xD000           ## $at = C6CAD000
-/* 006A8 808792D8 3C068088 */  lui     $a2, %hi(D_808793F8)       ## $a2 = 80880000
-/* 006AC 808792DC 246D0008 */  addiu   $t5, $v1, 0x0008           ## $t5 = 00000008
-/* 006B0 808792E0 AD0D02D0 */  sw      $t5, 0x02D0($t0)           ## 000002D0
-/* 006B4 808792E4 AC6E0000 */  sw      $t6, 0x0000($v1)           ## 00000000
-/* 006B8 808792E8 860F0168 */  lh      $t7, 0x0168($s0)           ## 00000168
-/* 006BC 808792EC 24C693F8 */  addiu   $a2, $a2, %lo(D_808793F8)  ## $a2 = 808793F8
-/* 006C0 808792F0 27A4002C */  addiu   $a0, $sp, 0x002C           ## $a0 = FFFFFFE4
-/* 006C4 808792F4 31F800FF */  andi    $t8, $t7, 0x00FF           ## $t8 = 00000000
-/* 006C8 808792F8 0301C825 */  or      $t9, $t8, $at              ## $t9 = C6CAD000
-/* 006CC 808792FC AC790004 */  sw      $t9, 0x0004($v1)           ## 00000004
-/* 006D0 80879300 8FA9004C */  lw      $t1, 0x004C($sp)           
-/* 006D4 80879304 2407017C */  addiu   $a3, $zero, 0x017C         ## $a3 = 0000017C
-/* 006D8 80879308 0C031AD5 */  jal     Graph_CloseDisps              
-/* 006DC 8087930C 8D250000 */  lw      $a1, 0x0000($t1)           ## 00000000
-/* 006E0 80879310 3C050601 */  lui     $a1, 0x0601                ## $a1 = 06010000
-/* 006E4 80879314 24A5BEC0 */  addiu   $a1, $a1, 0xBEC0           ## $a1 = 0600BEC0
-/* 006E8 80879318 0C00D4C9 */  jal     Gfx_DrawDListXlu
-              
-/* 006EC 8087931C 8FA4004C */  lw      $a0, 0x004C($sp)           
-.L80879320:
-/* 006F0 80879320 8FBF001C */  lw      $ra, 0x001C($sp)           
-/* 006F4 80879324 8FB00018 */  lw      $s0, 0x0018($sp)           
-/* 006F8 80879328 27BD0048 */  addiu   $sp, $sp, 0x0048           ## $sp = 00000000
-/* 006FC 8087932C 03E00008 */  jr      $ra                        
-/* 00700 80879330 00000000 */  nop
diff --git a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879334.s b/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879334.s
deleted file mode 100644
index 20498afe14..0000000000
--- a/asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879334.s
+++ /dev/null
@@ -1,47 +0,0 @@
-.rdata
-glabel D_80879410
-    .asciz "../z_bg_gnd_darkmeiro.c"
-    .balign 4
-	
-glabel D_80879428
-    .asciz "../z_bg_gnd_darkmeiro.c"
-    .balign 4
-
-.text
-glabel func_80879334
-/* 00704 80879334 27BDFFC8 */  addiu   $sp, $sp, 0xFFC8           ## $sp = FFFFFFC8
-/* 00708 80879338 AFBF0014 */  sw      $ra, 0x0014($sp)           
-/* 0070C 8087933C AFA40038 */  sw      $a0, 0x0038($sp)           
-/* 00710 80879340 AFA5003C */  sw      $a1, 0x003C($sp)           
-/* 00714 80879344 8CA50000 */  lw      $a1, 0x0000($a1)           ## 00000000
-/* 00718 80879348 3C068088 */  lui     $a2, %hi(D_80879410)       ## $a2 = 80880000
-/* 0071C 8087934C 24C69410 */  addiu   $a2, $a2, %lo(D_80879410)  ## $a2 = 80879410
-/* 00720 80879350 27A40024 */  addiu   $a0, $sp, 0x0024           ## $a0 = FFFFFFEC
-/* 00724 80879354 24070187 */  addiu   $a3, $zero, 0x0187         ## $a3 = 00000187
-/* 00728 80879358 0C031AB1 */  jal     Graph_OpenDisps              
-/* 0072C 8087935C AFA50034 */  sw      $a1, 0x0034($sp)           
-/* 00730 80879360 8FA80034 */  lw      $t0, 0x0034($sp)           
-/* 00734 80879364 3C19C6CA */  lui     $t9, 0xC6CA                ## $t9 = C6CA0000
-/* 00738 80879368 3739D0FF */  ori     $t9, $t9, 0xD0FF           ## $t9 = C6CAD0FF
-/* 0073C 8087936C 8D0302D0 */  lw      $v1, 0x02D0($t0)           ## 000002D0
-/* 00740 80879370 3C18FA00 */  lui     $t8, 0xFA00                ## $t8 = FA000000
-/* 00744 80879374 3C068088 */  lui     $a2, %hi(D_80879428)       ## $a2 = 80880000
-/* 00748 80879378 246F0008 */  addiu   $t7, $v1, 0x0008           ## $t7 = 00000008
-/* 0074C 8087937C AD0F02D0 */  sw      $t7, 0x02D0($t0)           ## 000002D0
-/* 00750 80879380 AC790004 */  sw      $t9, 0x0004($v1)           ## 00000004
-/* 00754 80879384 AC780000 */  sw      $t8, 0x0000($v1)           ## 00000000
-/* 00758 80879388 8FA9003C */  lw      $t1, 0x003C($sp)           
-/* 0075C 8087938C 24C69428 */  addiu   $a2, $a2, %lo(D_80879428)  ## $a2 = 80879428
-/* 00760 80879390 27A40024 */  addiu   $a0, $sp, 0x0024           ## $a0 = FFFFFFEC
-/* 00764 80879394 24070189 */  addiu   $a3, $zero, 0x0189         ## $a3 = 00000189
-/* 00768 80879398 0C031AD5 */  jal     Graph_CloseDisps              
-/* 0076C 8087939C 8D250000 */  lw      $a1, 0x0000($t1)           ## 00000000
-/* 00770 808793A0 3C050601 */  lui     $a1, 0x0601                ## $a1 = 06010000
-/* 00774 808793A4 24A5BEC0 */  addiu   $a1, $a1, 0xBEC0           ## $a1 = 0600BEC0
-/* 00778 808793A8 0C00D4C9 */  jal     Gfx_DrawDListXlu
-              
-/* 0077C 808793AC 8FA4003C */  lw      $a0, 0x003C($sp)           
-/* 00780 808793B0 8FBF0014 */  lw      $ra, 0x0014($sp)           
-/* 00784 808793B4 27BD0038 */  addiu   $sp, $sp, 0x0038           ## $sp = 00000000
-/* 00788 808793B8 03E00008 */  jr      $ra                        
-/* 0078C 808793BC 00000000 */  nop
diff --git a/data/overlays/actors/z_bg_gnd_darkmeiro.data.s b/data/overlays/actors/z_bg_gnd_darkmeiro.data.s
deleted file mode 100644
index f2a8cf260b..0000000000
--- a/data/overlays/actors/z_bg_gnd_darkmeiro.data.s
+++ /dev/null
@@ -1,18 +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_Gnd_Darkmeiro_InitVars
- .word 0x01B40600, 0x00000030, 0x01790000, 0x00000170
-.word BgGndDarkmeiro_Init
-.word BgGndDarkmeiro_Destroy
-.word BgGndDarkmeiro_Update
-.word 0x00000000
-
diff --git a/data/overlays/actors/z_bg_gnd_darkmeiro.reloc.s b/data/overlays/actors/z_bg_gnd_darkmeiro.reloc.s
deleted file mode 100644
index e558702734..0000000000
--- a/data/overlays/actors/z_bg_gnd_darkmeiro.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_80879440
-    .incbin "baserom/ovl_Bg_Gnd_Darkmeiro", 0x810, 0x00000080
diff --git a/spec b/spec
index d82749f69c..5ced884045 100644
--- a/spec
+++ b/spec
@@ -714,8 +714,7 @@ endseg
 beginseg
     name "ovl_Bg_Gnd_Darkmeiro"
     include "build/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.o"
-    include "build/data/overlays/actors/z_bg_gnd_darkmeiro.data.o"
-    include "build/data/overlays/actors/z_bg_gnd_darkmeiro.reloc.o"
+    include "build/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/ovl_Bg_Gnd_Darkmeiro_reloc.o"
 endseg
 
 beginseg
diff --git a/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.c b/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.c
index 998582e2b3..442268dc08 100644
--- a/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.c
+++ b/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.c
@@ -1,7 +1,7 @@
 /*
  * File: z_bg_gnd_darkmeiro.c
  * Overlay: ovl_Bg_Gnd_Darkmeiro
- * Description: Clear block
+ * Description: Shadow trial actors (invisible path, clear block, and timer)
  */
 
 #include "z_bg_gnd_darkmeiro.h"
@@ -13,17 +13,15 @@
 void BgGndDarkmeiro_Init(Actor* thisx, GlobalContext* globalCtx);
 void BgGndDarkmeiro_Destroy(Actor* thisx, GlobalContext* globalCtx);
 void BgGndDarkmeiro_Update(Actor* thisx, GlobalContext* globalCtx);
+void BgGndDarkmeiro_DrawInvisiblePath(Actor* thisx, GlobalContext* globalCtx);
+void BgGndDarkmeiro_DrawSwitchBlock(Actor* thisx, GlobalContext* globalCtx);
+void BgGndDarkmeiro_DrawStaticBlock(Actor* thisx, GlobalContext* globalCtx);
 
-void func_80878C30(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_80878F28(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_80878F34(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_80879128(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_80879134(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_808791BC(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_808791E8(BgGndDarkmeiro* this, GlobalContext* globalCtx);
-void func_80879334(BgGndDarkmeiro* this, GlobalContext* globalCtx);
+void BgGndDarkmeiro_Noop(BgGndDarkmeiro* this, GlobalContext* globalCtx);
+void BgGndDarkmeiro_UpdateBlockTimer(BgGndDarkmeiro* this, GlobalContext* globalCtx);
+void BgGndDarkmeiro_UpdateStaticBlock(BgGndDarkmeiro* this, GlobalContext* globalCtx);
+void BgGndDarkmeiro_UpdateSwitchBlock(BgGndDarkmeiro* this, GlobalContext* globalCtx);
 
-/*
 const ActorInit Bg_Gnd_Darkmeiro_InitVars = {
     ACTOR_BG_GND_DARKMEIRO,
     ACTORTYPE_PROP,
@@ -35,25 +33,189 @@ const ActorInit Bg_Gnd_Darkmeiro_InitVars = {
     (ActorFunc)BgGndDarkmeiro_Update,
     NULL,
 };
-*/
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878C30.s")
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Init.s")
+extern Gfx D_060088B0[];
+extern Gfx D_0600BEC0[];
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Destroy.s")
+extern UNK_TYPE D_0600C080;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F28.s")
+void BgGndDarkmeiro_ToggleBlock(BgGndDarkmeiro* this, GlobalContext* globalCtx) {
+    if (this->actionFlags & 2) {
+        if (this->timer1 == 0) {
+            func_8003EBF8(globalCtx, &globalCtx->colCtx.dyna, this->dyna.dynaPolyId);
+            this->actionFlags &= ~2;
+        }
+    } else if (this->timer1 != 0) {
+        func_8003EC50(globalCtx, &globalCtx->colCtx.dyna, this->dyna.dynaPolyId);
+        this->actionFlags |= 2;
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80878F34.s")
+void BgGndDarkmeiro_Init(Actor* thisx, GlobalContext* globalCtx) {
+    GlobalContext* globalCtx2 = globalCtx;
+    s32 local_c = 0;
+    BgGndDarkmeiro* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879128.s")
+    this->updateFunc = BgGndDarkmeiro_Noop;
+    Actor_SetScale(&this->dyna.actor, 0.1f);
+    switch (this->dyna.actor.params & 0xFF) {
+        case DARKMEIRO_INVISIBLE_PATH:
+            this->dyna.actor.draw = BgGndDarkmeiro_DrawInvisiblePath;
+            this->dyna.actor.flags |= 0x80;
+            break;
+        case DARKMEIRO_CLEAR_BLOCK:
+            DynaPolyInfo_Alloc(&D_0600C080, &local_c);
+            this->dyna.dynaPolyId =
+                DynaPolyInfo_RegisterActor(globalCtx2, &globalCtx2->colCtx.dyna, &this->dyna.actor, local_c);
+            if (((this->dyna.actor.params >> 8) & 0x3F) == 0x3F) {
+                this->updateFunc = BgGndDarkmeiro_UpdateStaticBlock;
+                this->dyna.actor.draw = BgGndDarkmeiro_DrawStaticBlock;
+            } else {
+                this->actionFlags = this->timer1 = this->timer2 = 0;
+                thisx->draw = BgGndDarkmeiro_DrawSwitchBlock;
+                this->updateFunc = BgGndDarkmeiro_UpdateSwitchBlock;
+                if (!Flags_GetSwitch(globalCtx2, (this->dyna.actor.params >> 8) & 0x3F)) {
+                    func_8003EBF8(globalCtx2, &globalCtx2->colCtx.dyna, this->dyna.dynaPolyId);
+                } else {
+                    this->timer1 = 64;
+                    this->actionFlags |= 2;
+                }
+            }
+            break;
+        case DARKMEIRO_BLOCK_TIMER:
+            this->actionFlags = this->timer1 = this->timer2 = 0;
+            this->updateFunc = BgGndDarkmeiro_UpdateBlockTimer;
+            thisx->draw = NULL;
+            if (Flags_GetSwitch(globalCtx2, ((this->dyna.actor.params >> 8) & 0x3F) + 1)) {
+                this->timer1 = 64;
+                this->actionFlags |= 4;
+            }
+            if (Flags_GetSwitch(globalCtx2, ((this->dyna.actor.params >> 8) & 0x3F) + 2)) {
+                this->timer2 = 64;
+                this->actionFlags |= 8;
+            }
+            if ((this->timer1 != 0) || (this->timer2 != 0)) {
+                Flags_SetSwitch(globalCtx2, (this->dyna.actor.params >> 8) & 0x3F);
+            } else {
+                Flags_UnsetSwitch(globalCtx2, (this->dyna.actor.params >> 8) & 0x3F);
+            }
+            break;
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879134.s")
+void BgGndDarkmeiro_Destroy(Actor* thisx, GlobalContext* globalCtx) {
+    GlobalContext* globalCtx2 = globalCtx;
+    BgGndDarkmeiro* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/BgGndDarkmeiro_Update.s")
+    if ((this->dyna.actor.params & 0xFF) == 1) {
+        if (1) {}
+        DynaPolyInfo_Free(globalCtx2, &globalCtx2->colCtx.dyna, this->dyna.dynaPolyId);
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791BC.s")
+void BgGndDarkmeiro_Noop(BgGndDarkmeiro* this, GlobalContext* globalCtx) {
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_808791E8.s")
+void BgGndDarkmeiro_UpdateBlockTimer(BgGndDarkmeiro* this, GlobalContext* globalCtx) {
+    s16 timeLeft;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/actors/ovl_Bg_Gnd_Darkmeiro/func_80879334.s")
+    if (Flags_GetSwitch(globalCtx, ((this->dyna.actor.params >> 8) & 0x3F) + 1)) {
+        if (this->actionFlags & 4) {
+            if (this->timer1 > 0) {
+                this->timer1--;
+            } else {
+                Flags_UnsetSwitch(globalCtx, ((this->dyna.actor.params >> 8) & 0x3F) + 1);
+                this->actionFlags &= ~4;
+            }
+        } else {
+            this->actionFlags |= 4;
+            this->timer1 = 304;
+            Audio_PlaySoundGeneral(NA_SE_EV_RED_EYE, &D_801333D4, 4, &D_801333E0, &D_801333E0, &D_801333E8);
+        }
+    }
+
+    if (Flags_GetSwitch(globalCtx, ((this->dyna.actor.params >> 8) & 0x3F) + 2)) {
+        if (this->actionFlags & 8) {
+            if (this->timer2 > 0) {
+                this->timer2--;
+            } else {
+                Flags_UnsetSwitch(globalCtx, ((this->dyna.actor.params >> 8) & 0x3F) + 2);
+                this->actionFlags &= ~8;
+            }
+        } else {
+            this->actionFlags |= 8;
+            this->timer2 = 304;
+            Audio_PlaySoundGeneral(NA_SE_EV_RED_EYE, &D_801333D4, 4, &D_801333E0, &D_801333E0, &D_801333E8);
+        }
+    }
+
+    timeLeft = CLAMP_MIN(this->timer1, this->timer2);
+    if (timeLeft > 0) {
+        func_8002F994(&this->dyna.actor, timeLeft);
+    }
+    if ((this->timer1 >= 64) || (this->timer2 >= 64)) {
+        Flags_SetSwitch(globalCtx, (this->dyna.actor.params >> 8) & 0x3F);
+    } else {
+        Flags_UnsetSwitch(globalCtx, (this->dyna.actor.params >> 8) & 0x3F);
+    }
+}
+
+void BgGndDarkmeiro_UpdateStaticBlock(BgGndDarkmeiro* this, GlobalContext* globalCtx) {
+}
+
+void BgGndDarkmeiro_UpdateSwitchBlock(BgGndDarkmeiro* this, GlobalContext* globalCtx) {
+    if (this->timer1 > 0) {
+        this->timer1--;
+    }
+
+    if (Flags_GetSwitch(globalCtx, (this->dyna.actor.params >> 8) & 0x3F)) {
+        this->timer1 = 64;
+    }
+
+    BgGndDarkmeiro_ToggleBlock(this, globalCtx);
+}
+
+void BgGndDarkmeiro_Update(Actor* thisx, GlobalContext* globalCtx) {
+    BgGndDarkmeiro* this = THIS;
+    GlobalContext* globalCtx2 = globalCtx;
+
+    this->updateFunc(this, globalCtx2);
+}
+
+void BgGndDarkmeiro_DrawInvisiblePath(Actor* thisx, GlobalContext* globalCtx) {
+    Gfx_DrawDListXlu(globalCtx, D_060088B0);
+}
+
+void BgGndDarkmeiro_DrawSwitchBlock(Actor* thisx, GlobalContext* globalCtx) {
+    BgGndDarkmeiro* this = THIS;
+    s16 vanishTimer;
+
+    vanishTimer = this->timer1;
+    if (vanishTimer != 0) {
+        if (vanishTimer > 64) {
+            this->timer2 = (this->timer2 < 120) ? this->timer2 + 8 : 127;
+        } else if (vanishTimer > 16) {
+            this->timer2 = (Math_Coss((u16)this->timer1 * 0x1000) * 64.0f) + 127.0f;
+            if (this->timer2 > 127) {
+                this->timer2 = 127;
+            }
+        } else {
+            this->timer2 = vanishTimer * 8;
+        }
+
+        OPEN_DISPS(globalCtx->state.gfxCtx, "../z_bg_gnd_darkmeiro.c", 378);
+        //@bug Due to a bug in the display list, the transparency data is not used.
+        gDPSetPrimColor(oGfxCtx->polyXlu.p++, 0, 0, 198, 202, 208, this->timer2);
+        CLOSE_DISPS(globalCtx->state.gfxCtx, "../z_bg_gnd_darkmeiro.c", 380);
+
+        Gfx_DrawDListXlu(globalCtx, D_0600BEC0);
+    }
+}
+
+void BgGndDarkmeiro_DrawStaticBlock(Actor* thisx, GlobalContext* globalCtx) {
+    OPEN_DISPS(globalCtx->state.gfxCtx, "../z_bg_gnd_darkmeiro.c", 391);
+    gDPSetPrimColor(oGfxCtx->polyXlu.p++, 0, 0, 198, 202, 208, 255);
+    CLOSE_DISPS(globalCtx->state.gfxCtx, "../z_bg_gnd_darkmeiro.c", 393);
+
+    Gfx_DrawDListXlu(globalCtx, D_0600BEC0);
+}
diff --git a/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.h b/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.h
index d34dfd9fb2..49b6e48cd6 100644
--- a/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.h
+++ b/src/overlays/actors/ovl_Bg_Gnd_Darkmeiro/z_bg_gnd_darkmeiro.h
@@ -6,14 +6,29 @@
 
 struct BgGndDarkmeiro;
 
-typedef void (*BgGndDarkmeiroActionFunc)(struct BgGndDarkmeiro*, GlobalContext*);
+typedef void (*BgGndDarkmeiroUpdateFunc)(struct BgGndDarkmeiro*, GlobalContext*);
 
 typedef struct BgGndDarkmeiro {
     /* 0x0000 */ DynaPolyActor dyna;
-    /* 0x0164 */ char unk_164[0x8];
-    /* 0x016C */ BgGndDarkmeiroActionFunc actionFunc;
+    /* 0x0164 */ u16 actionFlags;       // 0x8 for timer 2, 0x4 for timer 1, 0x2 for blocks.
+    /* 0x0166 */ s16 timer1;            // Vanish countdown for clear blocks
+    /* 0x0168 */ s16 timer2;            // Transparency flicker for clear blocks. Does not work.
+    /* 0x016C */ BgGndDarkmeiroUpdateFunc updateFunc;
 } BgGndDarkmeiro; // size = 0x0170
 
+typedef enum {
+    /* 0 */ DARKMEIRO_INVISIBLE_PATH,   // Textures for the invisible path in shadow trial.
+    
+    /* 1 */ DARKMEIRO_CLEAR_BLOCK,      /* Clear blocks appear when their switch flag is set and
+                                           disappear 64 frames after their switch flag is cleared.
+                                           Clear blocks with flag 0x3F are always on.             */
+                                      
+    /* 2 */ DARKMEIRO_BLOCK_TIMER       /* A block timer with switch flag N reacts to switch flags N+1
+                                           and N+2 being set, setting its own switch flag and a timer
+                                           for 304 frames. There are separate timers for N+1 and N+2,
+                                           and the timer sets flag N if either timer is above 64 frames. */
+} DarkmeiroType;
+
 extern const ActorInit Bg_Gnd_Darkmeiro_InitVars;
 
 #endif
diff --git a/undefined_syms.txt b/undefined_syms.txt
index c8c626f84e..0b81b58baf 100644
--- a/undefined_syms.txt
+++ b/undefined_syms.txt
@@ -913,6 +913,11 @@ D_0600045C = 0x0600045C;
 D_06005EA0 = 0x06005EA0;
 D_0600018C = 0x0600018C;
 
+// z_bg_gnd_darkmeiro
+D_0600C080 = 0x0600C080;
+D_060088B0 = 0x060088B0;
+D_0600BEC0 = 0x0600BEC0;
+
 // z_en_st
 D_06005298 = 0x06005298;
 D_06000304 = 0x06000304;