Mario's Picross Level Data
  v1.0 - November 25th, 2009
  by Killa B

The levels in Mario's Picross are stored from 0x92b0-0xa2b0 (the Demo level,
followed by the Easy Picross levels, and finally the Picross levels).

Each level is 0x20 bytes. All three puzzle sizes (5x5, 10x10, 15x15) are stored
in the same format. The smaller ones just have a lot of unused space.

The format is pretty straightforward. Each horizontal line in the puzzle is two
bytes. The first byte corresponds to the first 8 squares. The second byte
corresponds to the last 7 squares (with the last bit always null). This repeats
15 times. The last two bytes of a level are the puzzle's dimensions. In the
unaltered rom these will always be 0x0505, 0x0a0a, or 0x0f0f.

To illustrate this format, here is an example using Picross level 1-A:
 Offset -  Hex  -  Byte 1 : Byte 2
 ---------------------------------
 0x9ad0 - ff:fe - ########:#######
 0x9ad2 - c0:06 - ##      :     ##
 0x9ad4 - df:f6 - ## #####:#### ##
 0x9ad6 - d8:36 - ## ##   :  ## ##
 0x9ad8 - d8:36 - ## ##   :  ## ##
 0x9ada - d8:36 - ## ##   :  ## ##
 0x9adc - d8:36 - ## ##   :  ## ##
 0x9ade - df:f6 - ## #####:#### ##
 0x9ae0 - c0:06 - ##      :     ##
 0x9ae2 - c8:06 - ##  #   :     ##
 0x9ae4 - dc:06 - ## ###  :     ##
 0x9ae6 - c8:76 - ##  #   : ### ##
 0x9ae8 - c0:06 - ##      :     ##
 0x9aea - c0:0e - ##      :    ###
 0x9aec - ff:fe - ########:#######
 ---------------------------------
 0x9aee - 0f:0f - Level is 15x15