Is regulation A like a revision of the game? I saw it when I looked up more information on the game, but I didn't understand I it was like a different ver.
Regulation A was an Arcade re balance of MI2, since they didn't try to balance it at all and hoped to touch things up for MI3 when it was gonna release on Xbox 360. It removed Armored Ralf, and added Ash, Blue Mary, Makoto Mizoguchi from Fighter's History and new character Xion Lon.
@KasumiLover69 No, its like the ps2 game only you can't hop on network mode because the emulator doesn't support online and you can't use analog mode for some odd reason on Dualshock 3 pad.