Unlimited health:
Pause game play, then quickly press Black, White, L, X, L, White. The sound of an explosion will confirm correct code entry.
Bonus costumes:
The following costumes will become unlocked at various points throughout the game, after a particular mission.
Original
Free roam option:
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Successfully complete mission 4 to unlock the free roam option. This allows you to replay any mission that has been completed in single mission mode.
Golden Age
Silver Age Superman Red
Silver Age Superman Blue
The Return of Superman Black
Superman of the 90s
Kryptonian
Post-Our Worlds at War Mourning
Kingdom Come
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