Marvel Super Heroes Cheat Codes for Arcade

Kick Them When They're Down
Press Start when you win a round. You can now walk around and beat up the character on the ground.

Play as Anita
At the character select screen press MP, LP, LEFT, LK, MK.

Play as Dr. Doom
At the character select screen press MK, LP, DOWN, LK, MP.

Play as Thanos
At the character select screen press LK, HK, MP, MP, UP.

Enable Gems
At the Vs. Screen, hold both START buttons to enable gems.

Extra Power
Go to the Character Select screen, then Choose your chracter. Then press the two players (1 and 2 players) start together. This will double your character power.