Hi, i discovered this awesome port of Final Fight 3 on the NES just a few days ago. Granted, it uses the music from Mighty Final Fight, it still played great. When checking the mapper, it says that it uses Mapper 90. I was thinking of doing a reproduction cart of this game for myself, but i don't know if it would need to be hacked into an MMC3 mapper or not. And if it does, is it even possible? I am curious to know.