diff --git a/.gitignore b/.gitignore
index 77577a838..502cab285 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,3 +37,5 @@ pokecrystal.rtc
 
 # some users are dumping png.py into extras/
 extras/png.py
+
+*$py.class
diff --git a/extras/gfx.py b/extras/gfx.py
index 22ecc7cc6..1504933a4 100644
--- a/extras/gfx.py
+++ b/extras/gfx.py
@@ -27,23 +27,23 @@ def mkdir_p(path):
         else: raise
 
 
-def hex_dump(input, debug = True):
+def hex_dump(input, debug=True):
     """
     Display hex dump in rows of 16 bytes.
     """
-    
+
     dump = ''
     output = ''
     stream = ''
     address = 0x00
     margin = 2 + len(hex(len(input))[2:])
-    
+
     # dump
     for byte in input:
         cool = hex(byte)[2:].zfill(2)
         dump += cool + ' '
         if debug: stream += cool
-        
+
     # convenient for testing quick edits in bgb
     if debug: output += stream + '\n'
 
@@ -52,17 +52,16 @@ def hex_dump(input, debug = True):
     chars_per_byte = 3 # '__ '
     chars_per_line = bytes_per_line * chars_per_byte
     num_lines = int(ceil(float(len(dump)) / float(chars_per_line)))
-        
+
     # top
     # margin
     for char in range(margin):
         output += ' '
 
-    # 
     for byte in range(bytes_per_line):
         output += hex(byte)[2:].zfill(2) + ' '
     output = output[:-1] # last space
-        
+
     # print hex
     for line in range(num_lines):
         # address
@@ -72,7 +71,7 @@ def hex_dump(input, debug = True):
         end = chars_per_line + start - 1 # ignore last space
         output += dump[start:end]
         address += 0x10
-    
+
     return output
 
 
@@ -83,7 +82,7 @@ def get_tiles(image):
     tiles = []
     tile = []
     bytes_per_tile = 16
-        
+
     cur_byte = 0
     for byte in image:
         # build tile
@@ -113,7 +112,7 @@ def transpose(tiles):
     """
     Transpose a tile arrangement along line y=x.
     """
-    
+
     #     horizontal    <->     vertical
     # 00 01 02 03 04 05     00 06 0c 12 18 1e
     # 06 07 08 09 0a 0b     01 07 0d 13 19 1f
@@ -122,7 +121,7 @@ def transpose(tiles):
     # 18 19 1a 1b 1c 1d     04 0a 10 16 1c 22
     # 1e 1f 20 21 22 23     05 0b 11 17 1d 23
     # etc
-        
+
     flipped = []
     t = 0 # which tile we're on
     w = int(sqrt(len(tiles))) # assume square image
@@ -196,18 +195,18 @@ lowmax = 1 << 5 # standard 5-bit param
 
 
 class Compressed:
-    
+
     """
     Compress 2bpp data.
     """
-    
-    def __init__(self, image = None, mode = 'horiz', size = None):
+
+    def __init__(self, image=None, mode='horiz', size=None):
         assert image, 'need something to compress!'
         image = list(image)
         self.image = image
         self.pic = []
         self.animtiles = []
-                
+
         # only transpose pic (animtiles were never transposed in decompression)
         if size != None:
             for byte in range((size*size)*16):
@@ -221,7 +220,7 @@ class Compressed:
             self.tiles = get_tiles(self.pic)
             self.tiles = transpose(self.tiles)
             self.pic = connect(self.tiles)
-            
+
         self.image = self.pic + self.animtiles
 
         self.end = len(self.image)
@@ -326,15 +325,15 @@ class Compressed:
     def scanRepeats(self):
         """
         Works, but doesn't do flipped/reversed streams yet.
-                
+
         This takes up most of the compress time and only saves a few bytes
         it might be more feasible to exclude it entirely.
         """
-                
+
         self.repeats = []
         self.flips = []
         self.reverses = []
-                
+
         # make a 5-letter word list of the sequence
         letters = 5 # how many bytes it costs to use a repeat over a literal
         # any shorter and it's not worth the trouble
@@ -345,7 +344,7 @@ class Compressed:
             for j in range(letters):
                 word.append( ord(self.image[i+j]) )
             words.append((word, i))
-            
+
             zeros = []
             for zero in range(letters):
                 zeros.append( 0 )
@@ -405,13 +404,13 @@ class Compressed:
                 else: # no more overlaps
                     buffer.append(match)
             else: # last match, so there's nothing to check
-                buffer.append(match) 
+                buffer.append(match)
         matches = buffer
 
         # remove alternating sequences
         buffer = []
         for match in matches:
-            for i in range(6 if letters > 6 else letters): 
+            for i in range(6 if letters > 6 else letters):
                 if match[0][i] != match[0][i&1]:
                     buffer.append(match)
                     break
@@ -422,7 +421,7 @@ class Compressed:
 
     def doRepeats(self):
         """doesn't output the right values yet"""
-        
+
         unusedrepeats = []
         for repeat in self.repeats:
             if self.address >= repeat[2]:
@@ -598,7 +597,7 @@ class Decompressed:
     data can be fed in from rom if [start] is specified
     """
 
-    def __init__(self, lz = None, mode = None, size = None, start = 0):
+    def __init__(self, lz=None, mode=None, size=None, start=0):
         # todo: play nice with Compressed
 
         assert lz, 'need something to compress!'
@@ -734,7 +733,7 @@ class Decompressed:
     def doFlip(self):
         """
         Repeat flipped bytes from 2bpp output.
-        
+
         eg  11100100 -> 00100111
         quat 3 2 1 0 ->  0 2 1 3
         """
@@ -831,7 +830,7 @@ unowns = 0x124000
 num_unowns = 26
 unown_dex = 201
 
-def decompress_monster_by_id(id = 0, type = front):
+def decompress_monster_by_id(id=0, type=front):
     # no unowns here
     if id + 1 == unown_dex: return None
     # get size
@@ -847,7 +846,7 @@ def decompress_monster_by_id(id = 0, type = front):
     monster = Decompressed(rom, 'vert', size, address)
     return monster
 
-def decompress_monsters(type = front):
+def decompress_monsters(type=front):
     for id in range(num_monsters):
         # decompress
         monster = decompress_monster_by_id(id, type)
@@ -865,7 +864,7 @@ def decompress_monsters(type = front):
                 to_file(folder+filename, monster.pic)
 
 
-def decompress_unown_by_id(letter, type = front):
+def decompress_unown_by_id(letter, type=front):
     # get size
     if type == front:
         size = sizes[unown_dex-1]
@@ -879,7 +878,7 @@ def decompress_unown_by_id(letter, type = front):
     unown = Decompressed(rom, 'vert', size, address)
     return unown
 
-def decompress_unowns(type = front):
+def decompress_unowns(type=front):
     for letter in range(num_unowns):
         # decompress
         unown = decompress_unown_by_id(letter, type)
@@ -993,7 +992,7 @@ def decompress_misc():
         gfx = Decompressed( rom, mode, None, address )
         to_file(filename, gfx.output)
 
-def decompress_all(debug = False):
+def decompress_all(debug=False):
     """
     Decompress all known compressed data in baserom.
     """
@@ -1028,7 +1027,7 @@ def decompress_all(debug = False):
     return
 
 
-def decompress_from_address(address, mode='horiz', filename = 'de.2bpp', size = None):
+def decompress_from_address(address, mode='horiz', filename='de.2bpp', size=None):
     """
     Write decompressed data from an address to a 2bpp file.
     """
@@ -1036,7 +1035,7 @@ def decompress_from_address(address, mode='horiz', filename = 'de.2bpp', size =
     to_file(filename, image.pic)
 
 
-def decompress_file(filein, fileout, mode = 'horiz', size = None):
+def decompress_file(filein, fileout, mode='horiz', size=None):
     f = open(filein, 'rb')
     image = f.read()
     f.close()
@@ -1046,7 +1045,7 @@ def decompress_file(filein, fileout, mode = 'horiz', size = None):
     to_file(fileout, de.pic)
 
 
-def compress_file(filein, fileout, mode = 'horiz'):
+def compress_file(filein, fileout, mode='horiz'):
     f = open(filein, 'rb')
     image = f.read()
     f.close()
@@ -1099,7 +1098,7 @@ def hex_to_rgb(word):
     blue = word & 0b11111
     return (red, green, blue)
 
-def grab_palettes(address, length = 0x80):
+def grab_palettes(address, length=0x80):
     output = ''
     for word in range(length/2):
         color = ord(rom[address+1])*0x100 + ord(rom[address])
@@ -1228,7 +1227,7 @@ def dmg2rgb(word):
     blue = word & 0b11111
     alpha = 255
     return ((red<<3)+0b100, (green<<3)+0b100, (blue<<3)+0b100, alpha)
-    
+
 def rgb_to_dmg(color):
     word =  (color['r'] / 8)
     word += (color['g'] / 8) <<  5
@@ -1556,8 +1555,8 @@ def lz_to_png_by_file(filename):
 
 def dump_tileset_pngs():
     """
-    Convert .lz format tilesets into .png format tilesets. 
-        
+    Convert .lz format tilesets into .png format tilesets.
+
     Also, leaves a bunch of wonderful .2bpp files everywhere for your amusement.
     """
     for tileset_id in range(37):
@@ -1581,7 +1580,7 @@ def decompress_frontpic_anim(lz_file):
 def expand_pic_palettes():
     """
     Add white and black to palette files with fewer than 4 colors.
-    
+
     Pokemon Crystal only defines two colors for a pic palette to
     save space, filling in black/white at runtime.
     Instead of managing palette files of varying length, black
@@ -1601,7 +1600,7 @@ def expand_pic_palettes():
 
 if __name__ == "__main__":
     debug = False
-    
+
     argv = [None] * 5
     for i, arg in enumerate(sys.argv):
         argv[i] = arg
@@ -1667,7 +1666,7 @@ if __name__ == "__main__":
             filein = argv[2]
             fileout = argv[3]
             compress_file(filein, fileout)
-    
+
     elif argv[1] == '2bpp-to-png':
         to_png(argv[2])
 
diff --git a/extras/vba.py b/extras/vba.py
index c48e377b5..9b5d6e443 100644
--- a/extras/vba.py
+++ b/extras/vba.py
@@ -119,9 +119,9 @@ if not os.path.exists(rom_path):
 
 def _check_java_library_path():
     """
-    Returns the value of java.library.path. 
-    
-    The vba-clojure library must be compiled 
+    Returns the value of java.library.path.
+
+    The vba-clojure library must be compiled
     and linked from this location.
     """
     return System.getProperty("java.library.path")
@@ -159,8 +159,8 @@ a, b, r, l, u, d, select, start, restart = "a", "b", "r", "l", "u", "d", "select
 
 def button_combiner(buttons):
     """
-    Combines multiple button presses into an integer. 
-    
+    Combines multiple button presses into an integer.
+
     This is used when sending a keypress to the emulator.
     """
     result = 0
@@ -196,8 +196,8 @@ def button_combiner(buttons):
 
 def load_rom(path=None):
     """
-    Starts the emulator with a certain ROM. 
-    
+    Starts the emulator with a certain ROM.
+
     Defaults to rom_path if no parameters are given.
     """
     if path == None:
@@ -215,8 +215,8 @@ def load_rom(path=None):
 
 def shutdown():
     """
-    Stops the emulator. Closes the window. 
-    
+    Stops the emulator. Closes the window.
+
     The "opposite" of this is the load_rom function.
     """
     Gb.shutdown()
@@ -251,8 +251,8 @@ def translate_chars(charz):
 
 def _create_byte_buffer(data):
     """
-    Converts data into a ByteBuffer. 
-    
+    Converts data into a ByteBuffer.
+
     This is useful for interfacing with the Gb class.
     """
     buf = ByteBuffer.allocateDirect(len(data))
@@ -266,11 +266,11 @@ def _create_byte_buffer(data):
 
 def set_state(state, do_step=False):
     """
-    Injects the given state into the emulator. 
-    
-    Use do_step if you want to call step(), which also allows 
-    SDL to render the latest frame. Note that the default is to 
-    not step, and that the screen (if it is enabled) will appear 
+    Injects the given state into the emulator.
+
+    Use do_step if you want to call step(), which also allows
+    SDL to render the latest frame. Note that the default is to
+    not step, and that the screen (if it is enabled) will appear
     as if it still has the last state loaded. This is normal.
     """
     Gb.loadState(_create_byte_buffer(state))
@@ -289,8 +289,8 @@ def get_state():
 
 def save_state(name, state=None, override=False):
     """
-    Saves the given state to save_state_path. 
-    
+    Saves the given state to save_state_path.
+
     The file format must be ".sav"
     (and this will be appended to your string if necessary).
     """
@@ -313,8 +313,8 @@ def save_state(name, state=None, override=False):
 
 def load_state(name):
     """
-    Reads a state from file based on name. 
-    
+    Reads a state from file based on name.
+
     Looks in save_state_path for a file
     with this name (".sav" is optional).
     """
@@ -340,8 +340,8 @@ def generate_root():
 
 def get_root():
     """
-    Loads the root state. 
-    
+    Loads the root state.
+
     (Or restarts the emulator and creates a new root state.)
     """
     try:
@@ -397,16 +397,16 @@ def get_memory():
 
 def set_memory(memory):
     """
-    Sets memory in the emulator. 
-    
+    Sets memory in the emulator.
+
     Use get_memory() to retrieve the current state.
     """
     Gb.writeMemory(memory)
 
 def get_pixels():
     """
-    Returns a list of pixels on the screen display. 
-    
+    Returns a list of pixels on the screen display.
+
     Broken, probably. Use screenshot() instead.
     """
     sys.stderr.write("ERROR: seems to be broken on VBA's end? Good luck. Use"
@@ -418,9 +418,9 @@ def get_pixels():
 
 def screenshot(filename, literal=False):
     """
-    Saves a PNG screenshot to the file at filename. 
-    
-    Use literal if you want to store it in the current directory. 
+    Saves a PNG screenshot to the file at filename.
+
+    Use literal if you want to store it in the current directory.
     Default is to save it to screenshots/ under the project.
     """
     screenshots_path = os.path.join(project_path, "screenshots/")
@@ -453,17 +453,17 @@ def get_memory_range(start_address, byte_count):
 
 def set_memory_at(address, value):
     """
-    Sets a byte at a certain address in memory. 
-    
-    This directly sets the memory instead of copying 
+    Sets a byte at a certain address in memory.
+
+    This directly sets the memory instead of copying
     the memory from the emulator.
     """
     Gb.setMemoryAt(address, value)
 
 def press(buttons, holdsteps=1, aftersteps=1):
     """
-    Press a button. 
-    
+    Press a button.
+
     Use steplimit to say for how many steps you want to press
     the button (try leaving it at the default, 1).
     """
@@ -483,8 +483,8 @@ def press(buttons, holdsteps=1, aftersteps=1):
 
 def get_buttons():
     """
-    Returns the currentButtons[0] value 
-    
+    Returns the currentButtons[0] value
+
     (an integer with bits set for which
     buttons are currently pressed).
     """
@@ -773,11 +773,11 @@ class crystal:
     @staticmethod
     def walk_through_walls():
         """
-        Lets the player walk all over the map. 
-        
-        These values are probably reset by some of the map/collision 
-        functions when you move on to a new location, so this needs 
-        to be executed each step/tick if continuous walk-through-walls 
+        Lets the player walk all over the map.
+
+        These values are probably reset by some of the map/collision
+        functions when you move on to a new location, so this needs
+        to be executed each step/tick if continuous walk-through-walls
         is desired.
         """
         set_memory_at(0xC2FA, 0)
@@ -793,7 +793,7 @@ class crystal:
     def nstep(steplimit=500):
         """
         Steps the CPU forward and calls some functions in between each step.
-        
+
         (For example, to manipulate memory.) This is pretty slow.
         """
         for step_counter in range(0, steplimit):
@@ -848,9 +848,9 @@ class crystal:
     @staticmethod
     def menu_select(id=1):
         """
-        Sets the cursor to the given pokemon in the player's party. 
-        
-        This is under Start -> PKMN. This is useful for selecting a 
+        Sets the cursor to the given pokemon in the player's party.
+
+        This is under Start -> PKMN. This is useful for selecting a
         certain pokemon with fly or another skill.
 
         This probably works on other menus.
@@ -936,8 +936,8 @@ class crystal:
     @staticmethod
     def get_text():
         """
-        Returns alphanumeric text on the screen. 
-        
+        Returns alphanumeric text on the screen.
+
         Other characters will not be shown.
         """
         output = ""