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Dr. Robotnik's Mean Bean Machine

From Sonic Retro

This is the Sonic Community Hacking Guide for Dr. Robotnik's Mean Bean Machine.

Locations

This is an highly incomplete list of locations in the ROM, mainly about the sound driver and music-related stuff.

Offset Description
$B0000 - $E7FFF PCM samples. Split in banks of $8000 bytes to work with the Z80, padded with $FF.
$E8000 - $EFFFF DAC samples. Padded with $FF.
$F6000 Sound driver (Cube/Iwadare). Z80 code.
$F8000 Voices used in the songs, arranged in groups of $1D bytes each.
$F937C Song data, in the Cube/Iwadare format.
Sonic Community Hacking Guide
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Sonic Music Hacking Guide | SonED2 Manual
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Legacy Guides
The Nemesis Hacking Guides The Esrael Hacking Guides
ROM: Sonic 1 | Sonic 2 | Sonic 2 Beta | Sonic 3

Savestate: Sonic 1 | Sonic 2 Beta/Final | Sonic 3

Sonic 1 (English / Portuguese) | Sonic 2 Beta (English / Portuguese) | Sonic 2 and Knuckles (English / Portuguese)
Move to Sega Retro
Number Systems (or scrap) | Assembly Hacking Guide | Subroutine Equivalency List | 68000 Instruction Set | 68000 ASM-to-Hex Code Reference | VDP Documentation | Official Sega 32X Documentation | Official Mega-CD Documentation | Official Sega Mega Drive Documentation