Patch it to a US version ruby rom and you should have no problems. works fine on my VBA and my Gameboid Emualtor for android.
hey man the hack works on my VBA emulator for my Mac but it still doesn't work for my gpSP emulator for my PSP. could u possibly tell me what website u got YOUR ruby US version rom from? i used a US version and i still doesn't work. what site did YOU use? that'd help very well because then I'll know which US rom works FOR SURE you know what I mean?