Tomb Raider: Underworld

Bulletproof Lara:
Hold L1 and press X, R1, Triangle, R1, Square, L2 during game play. A sound will confirm correct code entry.

One shot kill:
Hold L1 and press Triangle, X, Triangle, Square, L2, Circle during game play. A sound will confirm correct code entry.
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Draw enemy health:
Hold L1 and press Square, Circle, X, L2, R1, Triangle during game play. A sound will confirm correct code entry.

Lara's swimsuit:
Successfully complete the game. Lara's swimsuit will be unlocked in the "Mediterranean Sea" level on the next playthrough.

Treasure hunt mode:
Successfully complete the game.

Art galleries:
Successfully complete the game to unlock the Artworks, Characters, Environments, Gears, and Storyboards art galleries.