Cheat mode
At the main menu or character selection screen, press Select, Up, L2, R1, L1, R2. If you entered the code correctly, you will hear a sound. Everything will now be unlocked in cerebo mode and Boss characters will be playable.
Lock Movies, Bosses, and Survival Pictures 1 and 2
At the main menu or character selection screen, hold Select + Start. The game will return to the main menu. Everything except academy mode rewards will be locked again in cerebo mode.
Play as Toad
Complete arcade mode once with any character to unlock Toad.
Play as Mystique
Complete arcade mode twice with any character to unlock Mystique.
Play as Sabretooth
Complete arcade mode three times with any character to unlock Sabretooth.
Play as Magneto
Complete arcade mode four times with any character to unlock Magneto.
Movie costumes
At the character selection screen, press Square when selecting your fighter to fight in their costume from the live-action X-Men movie.
Behind the scenes pictures
Complete arcade mode with all characters in their movie costume to unlock behind the scenes pictures in cerebro mode.
Historical comic pictures
Complete arcade mode with all characters in their regular costume to unlock their historical comic picture in cerebro mode.
Character comic pictures
Complete ten rounds with any character in their regular costume in survival mode to unlock their comic picture in cerebro mode.
Character movie pictures
Complete twenty rounds with any character in their movie costume in survival mode to unlock their movie pictures in cerebro mode.
Movie pictures
Complete twenty rounds with Gambit in survival mode to unlock movie pictures in cerebro mode.
Character intro FMV sequence
Complete arcade mode with any character to unlock their intro FMV sequence in cerebro mode.
Outro FMV sequence
Graduate the Academy with any character to unlock their outro FMV sequence in cerebro mode.
Bonus costumes
Graduate the Academy with straight A's with any character to unlock their third costume. Press Circle to select the third costume.