Starting to mess around with this thing called CheatEngine. It seems like it makes reverse-engineering code hacks really simple. Right now I'm using it to mess around with Sonic Adventure 2
Yeah I'm still working on the tutorial. In my head I'm imagining making some mod for the PC version of SA2 and then porting it to the PS3 version... I'm still just getting my foot in the door on the sonic retro forums though.