diff --git a/INSTALL.md b/INSTALL.md
index befa3418a..f595ca176 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -7,8 +7,7 @@ These instructions explain how to set up the tools required to build.
 Python 2.7 is required.
 
 ```bash
-sudo apt-get install make gcc bison git python python-pip
-pip install pypng
+sudo apt-get install make gcc bison git python
 
 git clone https://github.com/bentley/rgbds
 cd rgbds
@@ -32,7 +31,6 @@ In **Terminal**, run:
 
 ```bash
 xcode-select --install
-sudo easy_install pypng
 
 git clone https://github.com/bentley/rgbds
 cd rgbds
@@ -54,7 +52,7 @@ make
 
 To build on Windows, use [**Cygwin**](http://cygwin.com/install.html). Use the default settings.
 
-In the installer, select the following packages: `make` `git` `python` `python-setuptools` `gcc-core` `libsasl2-3` `ca-certificates`
+In the installer, select the following packages: `make` `git` `python` `gettext`
 
 Then get the most recent version of [**rgbds**](https://github.com/bentley/rgbds/releases/).
 Extract the archive and put `rgbasm.exe`, `rgblink.exe` and `rgbfix.exe` in `C:\cygwin\usr\local\bin`.
@@ -62,8 +60,6 @@ Extract the archive and put `rgbasm.exe`, `rgblink.exe` and `rgbfix.exe` in `C:\
 In the **Cygwin terminal**:
 
 ```bash
-lynx -source bootstrap.pypa.io/get-pip.py | python
-pip install pypng
 
 git clone --recursive https://github.com/pret/pokecrystal
 cd pokecrystal
@@ -74,3 +70,7 @@ To build **pokecrystal.gbc**:
 ```bash
 make
 ```
+
+## notes
+
+- If `gettext` no longer exists, grab `libsasl2-3` `ca-certificates`.
diff --git a/Makefile b/Makefile
index 261b58c24..65c64ede0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,9 @@
 PYTHON := python
 MD5 := md5sum -c --quiet
 
-.SUFFIXES: .asm .o .gbc .png .2bpp .1bpp .lz .pal .bin .blk .tilemap
-.PHONY: all clean crystal crystal11 pngs
+.SUFFIXES:
+.SUFFIXES: .2bpp
+.PHONY: all clean crystal crystal11
 .SECONDEXPANSION:
 
 poketools := extras/pokemontools
@@ -10,61 +11,45 @@ gfx       := $(PYTHON) gfx.py
 includes  := $(PYTHON) $(poketools)/scan_includes.py
 
 
-crystal11_obj := \
-wram11.o \
-crystal11.o \
-lib/mobile/main.o \
-home.o \
-audio.o \
-maps_crystal.o \
-engine/events_crystal.o \
-engine/credits_crystal.o \
-data/egg_moves_crystal.o \
-data/evos_attacks_crystal.o \
-data/pokedex/entries_crystal.o \
-misc/crystal_misc.o \
-text/common_text.o \
-gfx/pics.o
-
 crystal_obj := \
 wram.o \
 main.o \
 lib/mobile/main.o \
 home.o \
 audio.o \
-maps_crystal.o \
-engine/events_crystal.o \
-engine/credits_crystal.o \
-data/egg_moves_crystal.o \
-data/evos_attacks_crystal.o \
-data/pokedex/entries_crystal.o \
+maps.o \
+engine/events.o \
+engine/credits.o \
+data/egg_moves.o \
+data/evos_attacks.o \
+data/pokedex/entries.o \
 misc/crystal_misc.o \
 text/common_text.o \
 gfx/pics.o
 
-all_obj := $(crystal_obj) crystal11.o wram11.o
-
-# object dependencies
-$(foreach obj, $(all_obj), \
-	$(eval $(obj:.o=)_dep := $(shell $(includes) $(obj:.o=.asm))) \
-)
+crystal11_obj := $(crystal_obj:.o=11.o)
 
 
 roms := pokecrystal.gbc
 
 all: $(roms)
 crystal: pokecrystal.gbc
-
 crystal11: pokecrystal11.gbc
 
 clean:
-	rm -f $(roms) $(all_obj) $(roms:.gbc=.map) $(roms:.gbc=.sym)
+	rm -f $(roms) $(crystal_obj) $(crystal11_obj) $(roms:.gbc=.map) $(roms:.gbc=.sym)
 
 compare: pokecrystal.gbc pokecrystal11.gbc
 	@$(MD5) roms.md5
 
 %.asm: ;
-$(all_obj): $$*.asm $$($$*_dep)
+
+%11.o: dep = $(shell $(includes) $(@D)/$*.asm)
+%11.o: %.asm $$(dep)
+	rgbasm -D CRYSTAL11 -o $@ $<
+
+%.o: dep = $(shell $(includes) $(@D)/$*.asm)
+%.o: %.asm $$(dep)
 	rgbasm -o $@ $<
 
 pokecrystal11.gbc: $(crystal11_obj)
@@ -76,12 +61,7 @@ pokecrystal.gbc: $(crystal_obj)
 	rgbfix -Cjv -i BYTE -k 01 -l 0x33 -m 0x10 -p 0 -r 3 -t PM_CRYSTAL $@
 
 
-pngs:
-	find . -iname "*.lz"      -exec $(gfx) unlz {} +
-	find . -iname "*.[12]bpp" -exec $(gfx) png  {} +
-	find . -iname "*.[12]bpp" -exec touch {} \;
-	find . -iname "*.lz"      -exec touch {} \;
-
+%.png: ;
 %.2bpp: %.png ; $(gfx) 2bpp $<
 %.1bpp: %.png ; $(gfx) 1bpp $<
 %.lz:   %     ; $(gfx) lz $<
diff --git a/crystal11.asm b/crystal11.asm
deleted file mode 100644
index c4c7712e8..000000000
--- a/crystal11.asm
+++ /dev/null
@@ -1,4 +0,0 @@
-CRYSTAL11 = 1
-CORRUPT_TILES = 1
-
-INCLUDE "main.asm"
diff --git a/data/egg_moves_crystal.asm b/data/egg_moves_crystal.asm
deleted file mode 100644
index 50fbb1471..000000000
--- a/data/egg_moves_crystal.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-INCLUDE "pokecrystal.asm"
-INCLUDE "data/egg_moves.asm"
diff --git a/data/evos_attacks_crystal.asm b/data/evos_attacks_crystal.asm
deleted file mode 100644
index 22ec9d84c..000000000
--- a/data/evos_attacks_crystal.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-INCLUDE "pokecrystal.asm"
-INCLUDE "data/evos_attacks.asm"
diff --git a/engine/credits_crystal.asm b/engine/credits_crystal.asm
deleted file mode 100644
index 51265434b..000000000
--- a/engine/credits_crystal.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-INCLUDE "pokecrystal.asm"
-INCLUDE "engine/credits.asm"
diff --git a/engine/events_crystal.asm b/engine/events_crystal.asm
deleted file mode 100644
index 56cb7a200..000000000
--- a/engine/events_crystal.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-INCLUDE "pokecrystal.asm"
-INCLUDE "engine/events.asm"
diff --git a/event/poke_seer.asm b/event/poke_seer.asm
index c963076e9..c033a0944 100644
--- a/event/poke_seer.asm
+++ b/event/poke_seer.asm
@@ -169,7 +169,7 @@ GetCaughtLevel: ; 4f18c
 	jr z, .unknown
 	cp 1 ; hatched from an egg
 	jr nz, .print
-	ld a, 5 ; egg hatch level
+	ld a, EGG_LEVEL ; egg hatch level
 
 .print
 	ld [wSeerCaughtLevel], a
diff --git a/extras b/extras
index adbc204d7..68edf51f1 160000
--- a/extras
+++ b/extras
@@ -1 +1 @@
-Subproject commit adbc204d741bec7a68c1e6cd67751f226d0347cb
+Subproject commit 68edf51f1070b056c281471242220f9c6142e1b6
diff --git a/gfx.py b/gfx.py
index ec5bbb9d8..75af28b80 100644
--- a/gfx.py
+++ b/gfx.py
@@ -12,37 +12,59 @@ pics = [
 	'gfx/shrink2',
 ]
 
+def recursive_read(filename):
+	def recurse(filename_):
+		lines = []
+		for line in open(filename_):
+			if 'include "' in line.lower():
+				lines += recurse(line.split('"')[1])
+			else:
+				lines += [line]
+		return lines
+	lines = recurse(filename)
+	return ''.join(lines)
+
 base_stats = None
 def get_base_stats():
 	global base_stats
 	if not base_stats:
-		base_stats = open('data/base_stats.asm').read()
+		base_stats = recursive_read('data/base_stats.asm')
 	return base_stats
 
 def get_pokemon_dimensions(name):
-	if name == 'egg':
-		return 5, 5
-	if name.startswith('unown_'):
-		name = 'unown'
-	base_stats = get_base_stats()
-	start = base_stats.find(name.title() + 'BaseData:')
-	start = base_stats.find('\tdn ', start)
-	end = base_stats.find('\n', start)
-	line = base_stats[start:end].replace(',', ' ')
-	w, h = map(int, line.split()[1:3])
-	return w, h
+	try:
+		if name == 'egg':
+			return 5, 5
+		if name == 'questionmark':
+			return 7, 7
+		if name.startswith('unown_'):
+			name = 'unown'
+		base_stats = get_base_stats()
+		start = base_stats.find('\tdb ' + name.upper())
+		start = base_stats.find('\tdn ', start)
+		end = base_stats.find('\n', start)
+		line = base_stats[start:end].replace(',', ' ')
+		w, h = map(int, line.split()[1:3])
+		return w, h
+	except:
+		return 7, 7
 
 def filepath_rules(filepath):
 	"""Infer attributes of certain graphics by their location in the filesystem."""
 	args = {}
 
 	filedir, filename = os.path.split(filepath)
+	if filedir.startswith('./'):
+		filedir = filedir[2:]
+
 	name, ext = os.path.splitext(filename)
+	if ext == '.lz':
+		name, ext = os.path.splitext(name)
 
 	pokemon_name = ''
 
 	if 'gfx/pics/' in filedir:
-		pokemon_name = filedir.split('/')[3]
+		pokemon_name = filedir.split('/')[-1]
 		if pokemon_name.startswith('unown_'):
 			index = filedir.find(pokemon_name)
 			if index != -1:
@@ -84,22 +106,31 @@ def filepath_rules(filepath):
 
 
 def to_1bpp(filename, **kwargs):
-	_, ext = os.path.splitext(filename)
+	name, ext = os.path.splitext(filename)
 	if   ext == '.1bpp': pass
 	elif ext == '.2bpp': gfx.export_2bpp_to_1bpp(filename, **kwargs)
 	elif ext == '.png':  gfx.export_png_to_1bpp(filename, **kwargs)
+	elif ext == '.lz':
+		decompress(filename, **kwargs)
+		to_1bpp(name, **kwargs)
 
 def to_2bpp(filename, **kwargs):
-	_, ext = os.path.splitext(filename)
+	name, ext = os.path.splitext(filename)
 	if   ext == '.1bpp': gfx.export_1bpp_to_2bpp(filename, **kwargs)
 	elif ext == '.2bpp': pass
 	elif ext == '.png':  gfx.export_png_to_2bpp(filename, **kwargs)
+	elif ext == '.lz':
+		decompress(filename, **kwargs)
+		to_2bpp(name, **kwargs)
 
 def to_png(filename, **kwargs):
-	_, ext = os.path.splitext(filename)
+	name, ext = os.path.splitext(filename)
 	if   ext == '.1bpp': gfx.export_1bpp_to_png(filename, **kwargs)
 	elif ext == '.2bpp': gfx.export_2bpp_to_png(filename, **kwargs)
 	elif ext == '.png':  pass
+	elif ext == '.lz':
+		decompress(filename, **kwargs)
+		to_png(name, **kwargs)
 
 def compress(filename, **kwargs):
 	data = open(filename, 'rb').read()
diff --git a/hram.asm b/hram.asm
index 3e921f78e..dc6c480bf 100644
--- a/hram.asm
+++ b/hram.asm
@@ -50,6 +50,7 @@ hStringCmpString2  EQU $ffb5
 hDividend          EQU $ffb3 ; length in b register, before 'call Divide' (max 4 bytes)
 hDivisor           EQU $ffb7 ; 1 byte long
 hQuotient          EQU $ffb4 ; result (3 bytes long)
+hRemainder         EQU $ffb7
 
 hMultiplicand      EQU $ffb4 ; 3 bytes long
 hMultiplier        EQU $ffb7 ; 1 byte long
diff --git a/includes.asm b/includes.asm
index 456623d9f..1b3d6bed5 100644
--- a/includes.asm
+++ b/includes.asm
@@ -1,2 +1,3 @@
+INCLUDE "version.asm"
 INCLUDE "contents.asm"
 INCLUDE "constants.asm"
diff --git a/maps_crystal.asm b/maps_crystal.asm
deleted file mode 100644
index 7bb87d329..000000000
--- a/maps_crystal.asm
+++ /dev/null
@@ -1,2 +0,0 @@
-INCLUDE "pokecrystal.asm"
-INCLUDE "maps.asm"
diff --git a/misc/mobile_12.asm b/misc/mobile_12.asm
index 48e740681..dd0f63135 100755
--- a/misc/mobile_12.asm
+++ b/misc/mobile_12.asm
@@ -1805,8 +1805,8 @@ Function48d94: ; 48d94 (12:4d94)
 	ld [hDivisor], a
 	ld b, 2
 	call Divide
-	ld a, [hDivisor]
-	ld c, $a
+	ld a, [hRemainder]
+	ld c, 10
 	call SimpleDivide
 	sla b
 	sla b
diff --git a/misc/mobile_5c.asm b/misc/mobile_5c.asm
index b8710a78a..8ecd35edf 100755
--- a/misc/mobile_5c.asm
+++ b/misc/mobile_5c.asm
@@ -934,7 +934,7 @@ GFX_172f1f:
 INCBIN "gfx/unknown/172f1f.2bpp"
 
 Tilemap_1733af:
-IF DEF(CORRUPT_TILES)
+IF DEF(CRYSTAL11)
 INCBIN "gfx/unknown/1733af_corrupt.tilemap"
 ELSE
 INCBIN "gfx/unknown/1733af.tilemap"
diff --git a/pokecrystal.asm b/version.asm
similarity index 100%
rename from pokecrystal.asm
rename to version.asm
diff --git a/wram11.asm b/wram11.asm
deleted file mode 100644
index 4d3303fd0..000000000
--- a/wram11.asm
+++ /dev/null
@@ -1,3 +0,0 @@
-CRYSTAL11 = 1
-
-INCLUDE "wram.asm"