Donkey Kong Land 2/RAM map

The following article is a RAM map for Donkey Kong Land 2.

• DED3 = Bananas
• DED4 = Lives
• DF00 = Current Character
  • 00 = Diddy Kong
  • 01 = Dixie Kong
  • 02 = Rambi
  • 03 = Squawks
  • 04 = Enguarde
  • 05 = Squitter
  • 06 = Rattly
  • 07 = Roller Coaster
• DF2D = Traction
  • 03 = Non-ice levels
  • 34 = Ice levels
• DE80-DE81 = Horizontal scroll offset in level
• DE82-DE83 = Vertical scroll offset in level
• DF10 = Horizontal velocity
• DF11 = Vertical velocity
• DAF7 = Current music tempo

Saved data

• A000-A04F = File 1
• A050-A0BF = File 2
• A0A0-A0EF = File 3

File 1	File 2	File 3	Description
A000-A001	A050-A051	A0A0-A0A1	16-bit big endian checksum of 4E bytes afterwards (e.g. A002-A04F for File 1)
A006-A008	A056-A058	A0A6-A0A8	Total time (hours, minutes, seconds)
A009	A059	A0A9	Banana Coins collected (This data is not used. Upon loading a save file, after the game reads the Banana Coin count and stores it into RAM, it is then reset to 0. It is unclear whether or not this is a bug.)
A00A	A05A	A0AA	Kremkoins collected
A00B	A05B	A0AB	DK Coins collected
A100-A14F A200-A24F	A150-A19F A250-A29F	A1A0-A1EF A2A0-A2EF	Backup copies of given file, used if previous checksum fails

Checksum

For each 50-byte block, a 16-bit, big endian checksum is stored in the first two bytes. This is a sum of each 8-bit value in the rest of the 4E bytes. If the checksum fails, the checksum in the file's first backup copy is checked. If this also fails, the checksum in the file's second and final backup copy is checked. If they all fail, the file is erased. If any of them pass, the game always uses the data in the first block. This occurs even if the checksum failed in this block, but passed in either of the two backup blocks. This is a bug; the intended behavior is that the game would copy a valid backup block to the first block in this situation. Since the game always uses the data in the first block, this can cause glitches if the first block is corrupted, but the other two are intact.