Superman Returns: The Videogame Codes -

Costumes:
Complete the indicated tasks to unlock the corresponding costume.

Golden Age Superman: Save Metropolis from the tornadoes. 
Pod: Defeat Bizarro. 

Trophies:
Complete the indicated tasks to unlock the corresponding trophy.

Bizzaro Unchampion: Complete all the Bizzaro mini-games. 
Globe Bowling: Pick up the Daily Planet globe. 
Kitten Finder Extraordinaire: Rescue all 100 kittens. 
Meteor Mayhem: Complete level 1. 
Outstanding Valet: Pick up 500 cars. 
Photo Finish: Defeat 500 enemies