haha, cool, I have it for my modded PS2 as well. Yea 2006 has better gameplay but as far as characters go I am pertty sure 2006 and Regulation A have the same except Regulation A has a more characters and choices. I'ts too bad they didnt release a PS2 version of KOFXII. I know it could handle these sprites atleast. Woulda been cool to compare it to the nextgen I think.