Unlockables
Saiyan saga characters and techniques
beat the Saiyan saga in story mode
Frieza saga characters and techniques
beat the Frieza saga in story mode
Cell saga characters and...
To unlock everything, go to the main menu. While holding down L1, press RIGHT, RIGHT, LEFT, LEFT, DOWN, UP, CIRCLE
Unlockables
Bastion
Beat Story Mode once
Bishop
Beat Arcade Mode with Gambit
...
Passwords
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Iron Man and bonus costume 'War Machine'
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Hulk and bonus costumes; 'Grey Hulk' and 'Red Hulk'
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Wolverine and bonus costumes; 'Brown Wolverine' and...