I was thinking of making an editor for Road Rash (Sega CD) that would patch the bin/iso file so that you would start a new game with Wild Thing 2000. As far as I know, the only way to get that bike is with editing/patching the bin/iso file (meaning I don't think there's anyway to access it in-game). You can make the changes yourself with a hex editor, but this program would do all the work for you with the click of a button.
I'd like some input on if anyone thinks this would be something anyone would use, before I spend time on it. I can also expand the program to include things like start with more money, make specific bikes faster/handle better, etc.
I don't think the Sega CD had any cheat devices back in the day, so an editor might be a good way to add cheats, especially for people that don't want to use a hex editor. If anyone has any suggestions on other Sega CD games that might be a good candidate for an editor, let me know. Keep in mind that I've never made an editor for a file that's as large as SCD files, but from what I've read, it should be possible.