Binary ROM HackingNeed a helping hand or just want to talk about binary ROM hacks? Get comments and answers to any ROM Hacking-related problems, questions or thoughts you have here.
Well I'm not sure if there's anything on it for Ruby, but Touched managed to manipulate it a bit for FireRed: http://www.pokecommunity.com/showthread.php?t=333784.
At the very least, the principles of the hacking may be similar enough to give you an idea.