Main > Main Forum
Possible to Edit Game Roms?
(1/2) > >>
AmericanDemon:
I was playing X-Men today and thought it would be cool to update the clothing on the characters.  I know that in some NES Emulators you can go in and make changes.  Has anyone here done anything similar or know a way that it could be done for the arcade roms?
maraxle:
I remember an old utility that let you change things in the (Ms.) Pac-Man roms, so it is possible.
Crazy Cooter:
http://www.arcadecontrols.org/yabbse/index.php?board=3;action=display;threadid=25177

Howard is doing it.
DaemonCollector:

--- Quote from: Crazy Cooter on October 13, 2004, 08:38:03 pm ---http://www.arcadecontrols.org/yabbse/index.php?board=3;action=display;threadid=25177

Howard is doing it.

--- End quote ---

How is that anything like what he's talkin about? Howard is writing a stand alone game. You should be able to change the graphics though, its just a matter of figuring out how they are stored...maybe replacing the code in one of the roms files.
ericball:
Hacks of this kind are certainly possible.  You first have to identify which ROMs the graphics are stored in and what format (bit and byte layout/organization) they are stored in.  Then you need to fix any checksums which may exist to make such changes difficult.  There may be other complications like fixed palettes and collision detection.

Some of that may be easier if you are able to use the MAME source, or recompile it with custom debugging and tracing.

Possible, yes, but not generically simple unless you are re-implementing a hack someone else has done.
Navigation
Message Index
Next page

Go to full version