X-Men Origins: Wolverine Cheats
Defeat Wolverine in the costume you want in a bonus level and it becomes available to select at the beginning of a stage.
Finish the game on Hard (red/blue glasses required)
During gameplay enter: X, SQUARE, CIRCLE, X, TRIANGLE, X, TRIANGLE, X, SQUARE, CIRCLE, CIRCLE, SQUARE, R3
Finish the game once.