Money glitch (infinite money):
On Parisian ghetto level-walking around in different parts of the parks will respawn constantly wads of money.

Ledge Handstand:
When Hanging from a ledge hold L1 and press up and Lara will do a handstand.

Backflip Grab:
Back up to a ledge and HOLD l1 and press X

Somersault off Ledge:
Stand on the edge of a ledge and Press Triangle to crawl then press Left Analog stick Forward

Dive Into Water:
Stand on a ledge over water and Hold l1 and press X

Level select:
Pause the game, then hold L1+R2+DOWN+TRIANGE. Release the buttons, then quickly press CIRCLE, UP, SQUARE, TRIANGLE, RIGHT, DOWN. Level select will now appear on the pause menu. NOTE: this code allows you to retain any weapons and items you have collected over the previous levels.