Cheat codes
Click here to go to Cheat Code Central Platinum and get cheat codes for Superman: The Man Of Steel.

Free roam option
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.

Bonus costumes
The following costumes will become unlocked at various points throughout the game, after a particular mission:

Original
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