diff --git a/Makefile b/Makefile
index c73d6fddca..11a960949e 100644
--- a/Makefile
+++ b/Makefile
@@ -53,18 +53,25 @@ endif
 
 # Version-specific settings
 ifeq ($(VERSION),gc-us)
+  REGION := US
+  PAL := 0
+  MQ := 0
   DEBUG := 0
-  COMPARE := 0
-  CPP_DEFINES += -DOOT_NTSC=1 -DOOT_PAL=0 -DOOT_MQ=0
 else ifeq ($(VERSION),gc-eu)
+  REGION := EU
+  PAL := 1
+  MQ := 0
   DEBUG := 0
-  CPP_DEFINES += -DOOT_NTSC=0 -DOOT_PAL=1 -DOOT_MQ=0
 else ifeq ($(VERSION),gc-eu-mq)
+  REGION := EU
+  PAL := 1
+  MQ := 1
   DEBUG := 0
-  CPP_DEFINES += -DOOT_NTSC=0 -DOOT_PAL=1 -DOOT_MQ=1
 else ifeq ($(VERSION),gc-eu-mq-dbg)
+  REGION := EU
+  PAL := 1
+  MQ := 1
   DEBUG := 1
-  CPP_DEFINES += -DOOT_NTSC=0 -DOOT_PAL=1 -DOOT_MQ=1
 else
 $(error Unsupported version $(VERSION))
 endif
@@ -79,11 +86,28 @@ VENV := .venv
 MAKE = make
 CPPFLAGS += -P -xc -fno-dollars-in-identifiers
 
+# Converts e.g. ntsc-1.0 to OOT_NTSC_1_0
+VERSION_MACRO := OOT_$(shell echo $(VERSION) | tr a-z-. A-Z__)
+CPP_DEFINES += -DOOT_VERSION=$(VERSION_MACRO)
+CPP_DEFINES += -DOOT_REGION=REGION_$(REGION)
+
+ifeq ($(PAL),0)
+  CPP_DEFINES += -DOOT_NTSC=1
+else
+  CPP_DEFINES += -DOOT_PAL=1
+endif
+
+ifeq ($(MQ),0)
+  CPP_DEFINES += -DOOT_MQ=0
+else
+  CPP_DEFINES += -DOOT_MQ=1
+endif
+
 ifeq ($(DEBUG),1)
   CPP_DEFINES += -DOOT_DEBUG=1
   OPTFLAGS := -O2
 else
-  CPP_DEFINES += -DNDEBUG -DOOT_DEBUG=0
+  CPP_DEFINES += -DOOT_DEBUG=0 -DNDEBUG
   OPTFLAGS := -O2 -g3
 endif
 
@@ -170,7 +194,7 @@ endif
 
 CFLAGS += $(GBI_DEFINES)
 
-ASFLAGS := -march=vr4300 -32 -no-pad-sections -Iinclude
+ASFLAGS := -march=vr4300 -32 -no-pad-sections -Iinclude -I$(EXTRACTED_DIR)
 
 ifeq ($(COMPILER),gcc)
   CFLAGS += -G 0 -nostdinc $(INC) -march=vr4300 -mfix4300 -mabi=32 -mno-abicalls -mdivide-breaks -fno-PIC -fno-common -ffreestanding -fbuiltin -fno-builtin-sinf -fno-builtin-cosf $(CHECK_WARNINGS) -funsigned-char
@@ -262,7 +286,16 @@ TEXTURE_FILES_OUT := $(foreach f,$(TEXTURE_FILES_PNG_EXTRACTED:.png=.inc.c),$(f:
                      $(foreach f,$(TEXTURE_FILES_JPG_COMMITTED:.jpg=.jpg.inc.c),$(BUILD_DIR)/$f)
 
 # create build directories
-$(shell mkdir -p $(BUILD_DIR)/baserom $(BUILD_DIR)/assets/text $(foreach dir,$(SRC_DIRS) $(UNDECOMPILED_DATA_DIRS),$(BUILD_DIR)/$(dir)) $(foreach dir,$(ASSET_BIN_DIRS),$(dir:$(EXTRACTED_DIR)/%=$(BUILD_DIR)/%)))
+$(shell mkdir -p $(BUILD_DIR)/baserom \
+                 $(BUILD_DIR)/assets/text \
+                 $(foreach dir, \
+                      $(SRC_DIRS) \
+                      $(UNDECOMPILED_DATA_DIRS) \
+                      $(ASSET_BIN_DIRS_COMMITTED), \
+                    $(BUILD_DIR)/$(dir)) \
+                 $(foreach dir, \
+                      $(ASSET_BIN_DIRS_EXTRACTED), \
+                    $(dir:$(EXTRACTED_DIR)/%=$(BUILD_DIR)/%)))
 
 ifeq ($(COMPILER),ido)
 $(BUILD_DIR)/src/boot/stackcheck.o: OPTFLAGS := -O2
@@ -394,6 +427,7 @@ setup: venv
 	$(MAKE) -C tools
 	$(PYTHON) tools/decompress_baserom.py $(VERSION)
 	$(PYTHON) tools/extract_baserom.py $(BASEROM_DIR)/baserom-decompressed.z64 --oot-version $(VERSION) -o $(EXTRACTED_DIR)/baserom
+	$(PYTHON) tools/extract_incbins.py $(EXTRACTED_DIR)/baserom --oot-version $(VERSION) -o $(EXTRACTED_DIR)/incbin
 	$(PYTHON) tools/msgdis.py $(VERSION)
 	$(PYTHON) extract_assets.py -v $(VERSION) -j$(N_THREADS)
 
@@ -448,7 +482,7 @@ $(BUILD_DIR)/baserom/%.o: $(EXTRACTED_DIR)/baserom/%
 	$(OBJCOPY) -I binary -O elf32-big $< $@
 
 $(BUILD_DIR)/data/%.o: data/%.s
-	$(AS) $(ASFLAGS) $< -o $@
+	$(CPP) $(CPPFLAGS) -Iinclude $< | $(AS) $(ASFLAGS) -o $@
 
 $(BUILD_DIR)/assets/text/%.enc.jpn.h: assets/text/%.h $(EXTRACTED_DIR)/text/%.h assets/text/charmap.txt
 	$(CPP) $(CPPFLAGS) -I$(EXTRACTED_DIR) $< | $(PYTHON) tools/msgenc.py --encoding jpn --charmap assets/text/charmap.txt - $@
diff --git a/baseroms/gc-eu-mq-dbg/config.yml b/baseroms/gc-eu-mq-dbg/config.yml
index bd6c9bf6b3..c5e301afad 100644
--- a/baseroms/gc-eu-mq-dbg/config.yml
+++ b/baseroms/gc-eu-mq-dbg/config.yml
@@ -1,5 +1,70 @@
 dmadata_start: 0x12F70
 text_lang_pal: true
+incbins:
+  - name: ipl3
+    segment: makerom
+    vram: 0x80000040
+    size: 0xFC0
+  - name: rspbootText
+    segment: boot
+    vram: 0x80009320
+    size: 0xD0
+  - name: aspMainText
+    segment: code
+    vram: 0x801120C0
+    size: 0xFB0
+  - name: gspS2DEX2d_fifoText
+    segment: code
+    vram: 0x80113070
+    size: 0x18C0
+  - name: njpgdspMainText
+    segment: code
+    vram: 0x80114930
+    size: 0xAF0
+  - name: gMojiFontTLUTs
+    segment: code
+    vram: 0x8012A740
+    size: 0x80
+  - name: gMojiFontTex
+    segment: code
+    vram: 0x8012A7C0
+    size: 0x400
+  - name: gSoundFontTable
+    segment: code
+    vram: 0x801550D0
+    size: 0x270
+  - name: gSequenceFontTable
+    segment: code
+    vram: 0x80155340
+    size: 0x1C0
+  - name: gSequenceTable
+    segment: code
+    vram: 0x80155500
+    size: 0x6F0
+  - name: gSampleBankTable
+    segment: code
+    vram: 0x80155BF0
+    size: 0x80
+  - name: aspMainData
+    segment: code
+    vram: 0x80155C70
+    size: 0x2E0
+  - name: gspF3DZEX2_NoN_PosLight_fifoText
+    segment: code
+    vram: 0x80155F50
+    size: 0x1630
+  - name: gspF3DZEX2_NoN_PosLight_fifoData
+    segment: code
+    vram: 0x80157580
+    size: 0x420
+  - name: gspS2DEX2d_fifoData
+    segment: code
+    vram: 0x801579A0
+    size: 0x390
+  - name: njpgdspMainData
+    segment: code
+    vram: 0x80157D30
+    size: 0x60
 variables:
   gMtxClear: 0x8012DB20
   sNesMessageEntryTable: 0x8014B320
diff --git a/baseroms/gc-eu-mq/config.yml b/baseroms/gc-eu-mq/config.yml
index e04429d0a2..34c5cbe9c0 100644
--- a/baseroms/gc-eu-mq/config.yml
+++ b/baseroms/gc-eu-mq/config.yml
@@ -1,5 +1,62 @@
 dmadata_start: 0x7170
 text_lang_pal: true
+incbins:
+  - name: ipl3
+    segment: makerom
+    vram: 0x80000040
+    size: 0xFC0
+  - name: rspbootText
+    segment: boot
+    vram: 0x80005FC0
+    size: 0xD0
+  - name: aspMainText
+    segment: code
+    vram: 0x800E11A0
+    size: 0xFB0
+  - name: gspS2DEX2d_fifoText
+    segment: code
+    vram: 0x800E2150
+    size: 0x18C0
+  - name: njpgdspMainText
+    segment: code
+    vram: 0x800E3A10
+    size: 0xAF0
+  - name: gSoundFontTable
+    segment: code
+    vram: 0x80110470
+    size: 0x270
+  - name: gSequenceFontTable
+    segment: code
+    vram: 0x801106E0
+    size: 0x1C0
+  - name: gSequenceTable
+    segment: code
+    vram: 0x801108A0
+    size: 0x6F0
+  - name: gSampleBankTable
+    segment: code
+    vram: 0x80110F90
+    size: 0x80
+  - name: aspMainData
+    segment: code
+    vram: 0x80111010
+    size: 0x2E0
+  - name: gspF3DZEX2_NoN_PosLight_fifoText
+    segment: code
+    vram: 0x801112F0
+    size: 0x1630
+  - name: gspF3DZEX2_NoN_PosLight_fifoData
+    segment: code
+    vram: 0x80112920
+    size: 0x420
+  - name: gspS2DEX2d_fifoData
+    segment: code
+    vram: 0x80112D40
+    size: 0x390
+  - name: njpgdspMainData
+    segment: code
+    vram: 0x801130D0
+    size: 0x60
 variables:
   gMtxClear: 0x800FBC00
   sNesMessageEntryTable: 0x801077F0
diff --git a/baseroms/gc-eu/config.yml b/baseroms/gc-eu/config.yml
index 6f48daec7a..90712dc3f1 100644
--- a/baseroms/gc-eu/config.yml
+++ b/baseroms/gc-eu/config.yml
@@ -1,5 +1,62 @@
 dmadata_start: 0x7170
 text_lang_pal: true
+incbins:
+  - name: ipl3
+    segment: makerom
+    vram: 0x80000040
+    size: 0xFC0
+  - name: rspbootText
+    segment: boot
+    vram: 0x80005FC0
+    size: 0xD0
+  - name: aspMainText
+    segment: code
+    vram: 0x800E11C0
+    size: 0xFB0
+  - name: gspS2DEX2d_fifoText
+    segment: code
+    vram: 0x800E2170
+    size: 0x18C0
+  - name: njpgdspMainText
+    segment: code
+    vram: 0x800E3A30
+    size: 0xAF0
+  - name: gSoundFontTable
+    segment: code
+    vram: 0x80110490
+    size: 0x270
+  - name: gSequenceFontTable
+    segment: code
+    vram: 0x80110700
+    size: 0x1C0
+  - name: gSequenceTable
+    segment: code
+    vram: 0x801108C0
+    size: 0x6F0
+  - name: gSampleBankTable
+    segment: code
+    vram: 0x80110FB0
+    size: 0x80
+  - name: aspMainData
+    segment: code
+    vram: 0x80111030
+    size: 0x2E0
+  - name: gspF3DZEX2_NoN_PosLight_fifoText
+    segment: code
+    vram: 0x80111310
+    size: 0x1630
+  - name: gspF3DZEX2_NoN_PosLight_fifoData
+    segment: code
+    vram: 0x80112940
+    size: 0x420
+  - name: gspS2DEX2d_fifoData
+    segment: code
+    vram: 0x80112D60
+    size: 0x390
+  - name: njpgdspMainData
+    segment: code
+    vram: 0x801130F0
+    size: 0x60
 variables:
   gMtxClear: 0x800FBC20
   sNesMessageEntryTable: 0x80107810
diff --git a/baseroms/gc-us/config.yml b/baseroms/gc-us/config.yml
index 0d6acafc34..54498f9a20 100644
--- a/baseroms/gc-us/config.yml
+++ b/baseroms/gc-us/config.yml
@@ -1,5 +1,62 @@
 dmadata_start: 0x7170
 text_lang_pal: false
+incbins:
+  - name: ipl3
+    segment: makerom
+    vram: 0x80000040
+    size: 0xFC0
+  - name: rspbootText
+    segment: boot
+    vram: 0x80005FC0
+    size: 0xD0
+  - name: aspMainText
+    segment: code
+    vram: 0x800E3840
+    size: 0xFB0
+  - name: gspS2DEX2d_fifoText
+    segment: code
+    vram: 0x800E47F0
+    size: 0x18C0
+  - name: njpgdspMainText
+    segment: code
+    vram: 0x800E60B0
+    size: 0xAF0
+  - name: gSoundFontTable
+    segment: code
+    vram: 0x80112C80
+    size: 0x270
+  - name: gSequenceFontTable
+    segment: code
+    vram: 0x80112EF0
+    size: 0x1C0
+  - name: gSequenceTable
+    segment: code
+    vram: 0x801130B0
+    size: 0x6F0
+  - name: gSampleBankTable
+    segment: code
+    vram: 0x801137A0
+    size: 0x80
+  - name: aspMainData
+    segment: code
+    vram: 0x80113820
+    size: 0x2E0
+  - name: gspF3DZEX2_NoN_PosLight_fifoText
+    segment: code
+    vram: 0x80113B00
+    size: 0x1630
+  - name: gspF3DZEX2_NoN_PosLight_fifoData
+    segment: code
+    vram: 0x80115130
+    size: 0x420
+  - name: gspS2DEX2d_fifoData
+    segment: code
+    vram: 0x80115550
+    size: 0x390
+  - name: njpgdspMainData
+    segment: code
+    vram: 0x801158E0
+    size: 0x60
 variables:
   gMtxClear: 0x800FE2A0
   sJpnMessageEntryTable: 0x80109E8C
diff --git a/data/audio_tables.rodata.s b/data/audio_tables.rodata.s
index 5e76a127b8..4f6655c861 100644
--- a/data/audio_tables.rodata.s
+++ b/data/audio_tables.rodata.s
@@ -1,22 +1,22 @@
 .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
+/* 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 gSoundFontTable
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCC270, 0x270
+    .incbin "incbin/gSoundFontTable"
 
 glabel gSequenceFontTable
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCC4E0, 0x1C0
+    .incbin "incbin/gSequenceFontTable"
 
 glabel gSequenceTable
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCC6A0, 0x6F0
+    .incbin "incbin/gSequenceTable"
 
 glabel gSampleBankTable
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCCD90, 0x80
+    .incbin "incbin/gSampleBankTable"
diff --git a/data/rsp.rodata.s b/data/rsp.rodata.s
index f3df8983f1..bdb9fe9912 100644
--- a/data/rsp.rodata.s
+++ b/data/rsp.rodata.s
@@ -1,30 +1,30 @@
 .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
+/* 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 aspMainDataStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCCE10, 0x2E0
+    .incbin "incbin/aspMainData"
 glabel aspMainDataEnd
 
 glabel gspF3DZEX2_NoN_PosLight_fifoTextStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCD0F0, 0x1630
+    .incbin "incbin/gspF3DZEX2_NoN_PosLight_fifoText"
 glabel gspF3DZEX2_NoN_PosLight_fifoTextEnd
 
 glabel gspF3DZEX2_NoN_PosLight_fifoDataStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCE720, 0x420
+    .incbin "incbin/gspF3DZEX2_NoN_PosLight_fifoData"
 glabel gspF3DZEX2_NoN_PosLight_fifoDataEnd
 
 glabel gspS2DEX2d_fifoDataStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCEB40, 0x390
+    .incbin "incbin/gspS2DEX2d_fifoData"
 glabel gspS2DEX2d_fifoDataEnd
 
 glabel njpgdspMainDataStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBCEED0, 0x60
+    .incbin "incbin/njpgdspMainData"
 glabel njpgdspMainDataEnd
diff --git a/data/rsp.text.s b/data/rsp.text.s
index 045d8d6143..fcf48a2515 100644
--- a/data/rsp.text.s
+++ b/data/rsp.text.s
@@ -1,22 +1,22 @@
 .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
+/* 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 .text
 
 .balign 16
 
 glabel aspMainTextStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xB89260, 0xFB0
+    .incbin "incbin/aspMainText"
 glabel aspMainTextEnd
 
 glabel gspS2DEX2d_fifoTextStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xB8A210, 0x18C0
+    .incbin "incbin/gspS2DEX2d_fifoText"
 glabel gspS2DEX2d_fifoTextEnd
 
 glabel njpgdspMainTextStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xB8BAD0, 0xAF0
+    .incbin "incbin/njpgdspMainText"
 glabel njpgdspMainTextEnd
diff --git a/data/rsp_boot.text.s b/data/rsp_boot.text.s
index 01fe3f0a76..59c9ffc27f 100644
--- a/data/rsp_boot.text.s
+++ b/data/rsp_boot.text.s
@@ -1,14 +1,14 @@
 .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
+/* 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 .text
 
 .balign 16
 
 glabel rspbootTextStart
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0x9F20, 0xD0
+    .incbin "incbin/rspbootText"
 glabel rspbootTextEnd
diff --git a/data/unk_800093F0.data.s b/data/unk_800093F0.data.s
index 380dbe64b1..bf8a636c07 100644
--- a/data/unk_800093F0.data.s
+++ b/data/unk_800093F0.data.s
@@ -1,17 +1,18 @@
 .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
+/* 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
 
-# Unused.
-# This appears to be RSP code, however it is not part of
-# rspboot as rspbootTextEnd is at this symbol
+/* Unused.
+ * This appears to be RSP code, however it is not part of
+ * rspboot as rspbootTextEnd is at this symbol.
+ */
 glabel D_800093F0
     .word 0xE80C2001 # sqv     $v12[0], 0x10($zero)
     .word 0x34014000 # li      $1, 0x4000
diff --git a/data/unk_80009410.data.s b/data/unk_80009410.data.s
index d2bded6c36..8ff273e224 100644
--- a/data/unk_80009410.data.s
+++ b/data/unk_80009410.data.s
@@ -1,15 +1,15 @@
 .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
+/* 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
 
-# Unused
+/* Unused */
 glabel D_80009410
     .word osStopThread
     .word __osSetHWIntrRoutine
diff --git a/data/unk_8012ABC0.data.s b/data/unk_8012ABC0.data.s
index 31e03580e8..7f99d09e0d 100644
--- a/data/unk_8012ABC0.data.s
+++ b/data/unk_8012ABC0.data.s
@@ -1,15 +1,15 @@
 .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
+/* 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
 
-# Unused
+/* Unused */
 glabel D_8012ABC0
     .word fmodf
     .word guScale
diff --git a/data/z_text.data.s b/data/z_text.data.s
index 3fe890cdb6..d2a76e0b8e 100644
--- a/data/z_text.data.s
+++ b/data/z_text.data.s
@@ -1,18 +1,20 @@
 .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
+/* 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
 
-# temporary file name, rename to something more appropriate when decompiled
+/* temporary file name, rename to something more appropriate when decompiled */
 
+#if OOT_DEBUG
 glabel gMojiFontTLUTs
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBA18E0, 0x80
+    .incbin "incbin/gMojiFontTLUTs"
 
 glabel gMojiFontTex
-    .incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0xBA1960, 0x400
+    .incbin "incbin/gMojiFontTex"
+#endif
diff --git a/docs/tutorial/data.md b/docs/tutorial/data.md
index a96d26d84f..bc3bf07659 100644
--- a/docs/tutorial/data.md
+++ b/docs/tutorial/data.md
@@ -37,10 +37,10 @@ Large code block, click to show
 ```
 .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
+ /* 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
 
diff --git a/include/macros.h b/include/macros.h
index e135934060..ed67abc4ac 100644
--- a/include/macros.h
+++ b/include/macros.h
@@ -1,6 +1,16 @@
 #ifndef MACROS_H
 #define MACROS_H
 
+// OOT versions in build order
+#define OOT_GC_JP 1
+#define OOT_GC_JP_MQ 2
+#define OOT_GC_US 3
+#define OOT_GC_US_MQ 4
+#define OOT_GC_EU_MQ_DBG 5
+#define OOT_GC_EU 6
+#define OOT_GC_EU_MQ 7
+#define OOT_GC_JP_CE 8
+
 #ifndef AVOID_UB
 #define BAD_RETURN(type) type
 #else
diff --git a/include/region.h b/include/region.h
new file mode 100644
index 0000000000..b33375e6f5
--- /dev/null
+++ b/include/region.h
@@ -0,0 +1,9 @@
+#ifndef REGION_H
+#define REGION_H
+
+#define REGION_NULL 0
+#define REGION_JP 1
+#define REGION_US 2
+#define REGION_EU 3
+
+#endif
diff --git a/include/z64.h b/include/z64.h
index 03ef633b7f..7e0b60ee5e 100644
--- a/include/z64.h
+++ b/include/z64.h
@@ -70,11 +70,6 @@
 #define SCREEN_WIDTH  320
 #define SCREEN_HEIGHT 240
 
-#define REGION_NULL 0
-#define REGION_JP 1
-#define REGION_US 2
-#define REGION_EU 3
-
 #define THREAD_PRI_IDLE_INIT    10
 #define THREAD_PRI_MAIN_INIT    10
 #define THREAD_PRI_DMAMGR_LOW   10  // Used when decompressing files
@@ -104,9 +99,6 @@
 #define STACK_TOP(stack) \
     ((u8*)(stack) + sizeof(stack))
 
-// NOTE: Once we start supporting other builds, this can be changed with an ifdef
-#define REGION_NATIVE REGION_EU
-
 typedef struct {
     /* 0x00 */ void* loadedRamAddr;
     /* 0x04 */ RomFile file;
diff --git a/src/boot/build.c b/src/boot/build.c
index d2fb891c0c..a69c28d1f3 100644
--- a/src/boot/build.c
+++ b/src/boot/build.c
@@ -1,12 +1,17 @@
+#include "macros.h"
+
 const char gBuildTeam[] = "zelda@srd022j";
 
-// TODO: Use per-version preprocessor defines
-#if OOT_DEBUG // gc-eu-mq-dbg
+#if OOT_VERSION == OOT_GC_US
+const char gBuildDate[] = "02-12-19 13:28:09";
+#elif OOT_VERSION == OOT_GC_EU_MQ_DBG
 const char gBuildDate[] = "03-02-21 00:16:31";
-#elif !OOT_MQ // gc-eu
+#elif OOT_VERSION == OOT_GC_EU
 const char gBuildDate[] = "03-02-21 20:12:23";
-#else         // gc-eu-mq
+#elif OOT_VERSION == OOT_GC_EU_MQ
 const char gBuildDate[] = "03-02-21 20:37:19";
+#else
+#error "Unsupported OOT_VERSION"
 #endif
 
 const char gBuildMakeOption[] = "";
diff --git a/src/boot/z_locale.c b/src/boot/z_locale.c
index abff2ba77e..acd151ce40 100644
--- a/src/boot/z_locale.c
+++ b/src/boot/z_locale.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "region.h"
 #include "terminal.h"
 
 u32 gCurrentRegion = 0;
@@ -35,7 +36,7 @@ void Locale_ResetRegion(void) {
 
 #if OOT_DEBUG
 u32 func_80001F48(void) {
-    if (gCurrentRegion == REGION_NATIVE) {
+    if (gCurrentRegion == OOT_REGION) {
         return 0;
     }
 
@@ -47,7 +48,7 @@ u32 func_80001F48(void) {
 }
 
 u32 func_80001F8C(void) {
-    if (gCurrentRegion == REGION_NATIVE) {
+    if (gCurrentRegion == OOT_REGION) {
         return 0;
     }
 
@@ -60,6 +61,6 @@ u32 func_80001F8C(void) {
 
 // This function appears to be unused?
 u32 Locale_IsRegionNative(void) {
-    return gCurrentRegion == REGION_NATIVE;
+    return gCurrentRegion == OOT_REGION;
 }
 #endif
diff --git a/src/code/z_actor.c b/src/code/z_actor.c
index 6afae4f1fd..890a05a681 100644
--- a/src/code/z_actor.c
+++ b/src/code/z_actor.c
@@ -689,7 +689,7 @@ void TitleCard_InitPlaceName(PlayState* play, TitleCardContext* titleCtx, void*
     SceneTableEntry* loadedScene = play->loadedScene;
     u32 size = loadedScene->titleFile.vromEnd - loadedScene->titleFile.vromStart;
 
-    if ((size != 0) && (size <= 0x3000)) {
+    if ((size != 0) && (size <= 0x1000 * LANGUAGE_MAX)) {
         DMA_REQUEST_SYNC(texture, loadedScene->titleFile.vromStart, size, "../z_actor.c", 2765);
     }
 
@@ -733,7 +733,15 @@ void TitleCard_Draw(PlayState* play, TitleCardContext* titleCtx) {
 
         OPEN_DISPS(play->state.gfxCtx, "../z_actor.c", 2824);
 
+#if OOT_NTSC
+        if (gSaveContext.language == LANGUAGE_JPN) {
+            textureLanguageOffset = 0;
+        } else {
+            textureLanguageOffset = width * height;
+        }
+#else
         textureLanguageOffset = width * height * gSaveContext.language;
+#endif
         height = (width * height > 0x1000) ? 0x1000 / width : height;
         titleSecondY = titleY + (height * 4);
 
diff --git a/src/code/z_common_data.c b/src/code/z_common_data.c
index 47aecd9e6a..a0588d9295 100644
--- a/src/code/z_common_data.c
+++ b/src/code/z_common_data.c
@@ -24,4 +24,7 @@ void SaveContext_Init(void) {
     gSaveContext.dogIsLost = true;
     gSaveContext.nextTransitionType = TRANS_NEXT_TYPE_DEFAULT;
     gSaveContext.prevHudVisibilityMode = HUD_VISIBILITY_ALL;
+#if OOT_NTSC
+    gSaveContext.language = LANGUAGE_ENG;
+#endif
 }
diff --git a/src/code/z_play.c b/src/code/z_play.c
index b0db8f0ceb..465dc4e9ad 100644
--- a/src/code/z_play.c
+++ b/src/code/z_play.c
@@ -168,7 +168,11 @@ void Play_SetupTransition(PlayState* this, s32 transitionType) {
                 break;
 
             default:
+#if OOT_NTSC
+                HUNGUP_AND_CRASH("../z_play.c", 2287);
+#else
                 HUNGUP_AND_CRASH("../z_play.c", 2290);
+#endif
                 break;
         }
     }
diff --git a/src/makerom/ipl3.s b/src/makerom/ipl3.s
index be02f7e2fc..45f1c8e6f8 100644
--- a/src/makerom/ipl3.s
+++ b/src/makerom/ipl3.s
@@ -1,4 +1,4 @@
 
 .section .text
 
-.incbin "baseroms/gc-eu-mq-dbg/baserom-decompressed.z64", 0x40, 0xFC0
+.incbin "incbin/ipl3"
diff --git a/src/makerom/rom_header.s b/src/makerom/rom_header.s
index ec243cc9cb..06694ae35e 100644
--- a/src/makerom/rom_header.s
+++ b/src/makerom/rom_header.s
@@ -1,4 +1,5 @@
 #include "rom_header.h"
+#include "region.h"
 
 /* 0x00 */ ENDIAN_IDENTIFIER
 /* 0x01 */ PI_DOMAIN_1_CFG(64, 18, 7, 3)
@@ -9,7 +10,17 @@
 /* 0x18 */ PADDING(8)
 /* 0x20 */ ROM_NAME("THE LEGEND OF ZELDA")
 /* 0x34 */ PADDING(7)
+#if OOT_NTSC
+/* 0x3B */ MEDIUM(CARTRIDGE_EXPANDABLE)
+#else
 /* 0x3B */ MEDIUM(CARTRIDGE)
+#endif
 /* 0x3C */ GAME_ID("ZL")
+#if OOT_REGION == REGION_US
+/* 0x3E */ REGION(US)
+#elif OOT_REGION == REGION_JP
+/* 0x3E */ REGION(JP)
+#elif OOT_REGION == REGION_EU
 /* 0x3E */ REGION(PAL)
+#endif
 /* 0x3F */ GAME_REVISION(15)
diff --git a/src/overlays/actors/ovl_Fishing/z_fishing.c b/src/overlays/actors/ovl_Fishing/z_fishing.c
index 49ff3b5f1e..34876f792d 100644
--- a/src/overlays/actors/ovl_Fishing/z_fishing.c
+++ b/src/overlays/actors/ovl_Fishing/z_fishing.c
@@ -5759,8 +5759,18 @@ void Fishing_UpdateOwner(Actor* thisx, PlayState* play2) {
     SkinMatrix_Vec3fMtxFMultXYZW(&play->viewProjectionMtxF, &sStreamSfxPos, &sStreamSfxProjectedPos, &sProjectedW);
 
     Sfx_PlaySfxAtPos(&sStreamSfxProjectedPos, NA_SE_EV_WATER_WALL - SFX_FLAG);
-    // convert length to weight. Theoretical max of 59 lbs (127^2*.0036+.5)
+
+#if OOT_NTSC
+    if (gSaveContext.language == LANGUAGE_JPN) {
+        gSaveContext.minigameScore = sFishLengthToWeigh;
+    } else {
+        // Convert length to weight. Theoretical max of 59 lbs (127^2*.0036+.5)
+        gSaveContext.minigameScore = (SQ((f32)sFishLengthToWeigh) * 0.0036f) + 0.5f;
+    }
+#else
+    // Same as above, but for PAL
     gSaveContext.minigameScore = (SQ((f32)sFishLengthToWeigh) * 0.0036f) + 0.5f;
+#endif
 
 #if OOT_DEBUG
     if (BREG(26) != 0) {
diff --git a/src/overlays/actors/ovl_player_actor/z_player.c b/src/overlays/actors/ovl_player_actor/z_player.c
index 0073b5d76e..aac7839a9f 100644
--- a/src/overlays/actors/ovl_player_actor/z_player.c
+++ b/src/overlays/actors/ovl_player_actor/z_player.c
@@ -10113,7 +10113,11 @@ void Player_Init(Actor* thisx, PlayState* play2) {
     Player_SetEquipmentData(play, this);
     this->prevBoots = this->currentBoots;
     Player_InitCommon(this, play, gPlayerSkelHeaders[((void)0, gSaveContext.save.linkAge)]);
-    this->giObjectSegment = (void*)(((uintptr_t)ZELDA_ARENA_MALLOC(0x3008, "../z_player.c", 17175) + 8) & ~0xF);
+    // `giObjectSegment` is used for both "get item" objects and title cards. The maximum size for
+    // get item objects is 0x2000 (see the assert in func_8083AE40), and the maximum size for
+    // title cards is 0x1000 * LANGUAGE_MAX since each title card image includes all languages.
+    this->giObjectSegment =
+        (void*)(((uintptr_t)ZELDA_ARENA_MALLOC(0x1000 * LANGUAGE_MAX + 8, "../z_player.c", 17175) + 8) & ~0xF);
 
     respawnFlag = gSaveContext.respawnFlag;
 
diff --git a/tools/extract_incbins.py b/tools/extract_incbins.py
new file mode 100755
index 0000000000..c76129ca46
--- /dev/null
+++ b/tools/extract_incbins.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+
+# SPDX-FileCopyrightText: © 2024 ZeldaRET
+# SPDX-License-Identifier: CC0-1.0
+
+from __future__ import annotations
+
+import argparse
+from pathlib import Path
+import sys
+
+import dmadata
+import version_config
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Extract incbin pieces from an uncompressed ROM."
+    )
+    parser.add_argument(
+        "baserom_dir", metavar="BASEROM_DIR", type=Path, help="Directory of uncompressed ROM segments"
+    )
+    parser.add_argument(
+        "-v",
+        "--oot-version",
+        required=True,
+        help="OOT version",
+    )
+    parser.add_argument(
+        "-o",
+        "--output-dir",
+        type=Path,
+        required=True,
+        help="Output directory for incbin pieces",
+    )
+
+    args = parser.parse_args()
+
+    config = version_config.load_version_config(args.oot_version)
+
+    args.output_dir.mkdir(parents=True, exist_ok=True)
+    for incbin in config.incbins:
+        incbin_path = args.output_dir / incbin.name
+        with open(args.baserom_dir / incbin.segment, "rb") as f:
+            offset = incbin.vram - config.dmadata_segments[incbin.segment].vram
+            f.seek(offset)
+            incbin_data = f.read(incbin.size)
+            incbin_path.write_bytes(incbin_data)
+
+    print(f"Extracted {len(config.incbins)} incbin pieces to {args.output_dir}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/version_config.py b/tools/version_config.py
index 6ca203fd59..f1666d1452 100644
--- a/tools/version_config.py
+++ b/tools/version_config.py
@@ -26,6 +26,8 @@ class VersionConfig:
     text_lang_pal: bool
     # DMA segment information, in ROM order
     dmadata_segments: OrderedDict[str, SegmentInfo]
+    # ROM pieces that are copied directly into the build with .incbin
+    incbins: list[IncbinConfig]
     # Addresses of important variables needed for asset extraction
     variables: dict[str, int]
     # Assets to extract
@@ -38,6 +40,14 @@ class SegmentInfo:
     vram: Optional[int]
 
 
+@dataclasses.dataclass
+class IncbinConfig:
+    name: str
+    segment: str
+    vram: int
+    size: int
+
+
 @dataclasses.dataclass
 class AssetConfig:
     name: str
@@ -61,6 +71,14 @@ def load_version_config(version: str) -> VersionConfig:
     with open(PROJECT_ROOT / f"baseroms/{version}/config.yml", "r") as f:
         config = yaml.load(f, Loader=yaml.Loader)
 
+    incbins = []
+    for incbin in config["incbins"]:
+        incbins.append(
+            IncbinConfig(
+                incbin["name"], incbin["segment"], incbin["vram"], incbin["size"]
+            )
+        )
+
     assets = []
     for asset in config["assets"]:
         name = asset["name"]
@@ -74,6 +92,7 @@ def load_version_config(version: str) -> VersionConfig:
         dmadata_start=config["dmadata_start"],
         text_lang_pal=config["text_lang_pal"],
         dmadata_segments=load_dmadata_segments(version),
+        incbins=incbins,
         variables=config["variables"],
         assets=assets,
     )