Tomb Raider: Underworld - Cheat (PS3, XBOX 360)

Hint: Stuck In Rock or In Mid-Air?
Occasionally Lara becomes hung up on her environment or atop some breakable jars. If she cannot jump out of her predicament, try having her duck (hold the crouch button) and see if she can nudge herself out of being stuck.

Hint: Handstand and Flip Mantle
Hold the A BUTTON and stick direction towards Lara's front when she clings onto a ledge for her to do a handstand mantle (high ledge) or flip mantle (low ledge).

White Swimsuit
Clear the story mode once and Lara will have the option to don a white swimsuit for subsequent replays of the Mediterranean Sea stage.

Story Boards
Clear the game on Master Survivalist difficulty to unlock story boards in the extras menu.

Lara Croft Concept Art
Collect all the relics in the game to unlock Lara Croft concept art.

Creature Concepts
Collect all the smaller treasures in each stage to unlock creature concept art in the extras menu.