Enter the following codes during gameplay. Do not press Start or Select; just press the buttons quickly.

Level Skip:

L2, R2, L2 (x2), R2, L2, R2, L2, R2, L2 (x4), R2, L2, R2 (x4), L2. If you entered the code correctly, Lara will say "Nope."

All Weapons, Medkits, Flares:

L2, R2 (x2), L2 (x4), R2, L2, R2 (x2), L2, R2 (x2), L2 (x2), R2, L2 (x2), R2. If you entered the code correctly, Lara will scream.

All Secrets:

L2 (x5), R2, L2 (x3), R2, L2, R2, L2 (x2), R2, L2 (x2), R2, L2 (x2). If you entered the code correctly, Lara will say "Ahhhh." This also unlocks the secret 'All Hallowed' bonus level.

Full Health:

R2 (x2), L2, R2, L2 (x6), R2, L2 (x3), R2, L2 (x5). If you entered the code correctly, Lara will say "Ahhhh".

Race key in Lara's home:

While playing a game in Lara's home, press R2, L2 (x3), R2, L2 (x6), R2, L2 (x5), R2, L2 (x2). If you entered the code correctly, Lara will say "Nope."

Lara's museum:

Activate the switch behind the diving board in Lara's pool room. Then, go to the door it opens in her main hall. Pull the switch, sprint straight across her lobby and roll into her museum. You'll find cool stuff from her previous adventures.

Race key and Basement:

Go to the Library. When Lara walks in the doorway, there are two bookcases to the right. Approach the one on the left and press Action. Then, Lara will pull a book and the fire will extinguish, allowing her to climb up the sidewall inside the fireplace. After reaching the top, follow the passageways until reaching a room with two levels, with a switch on the top level. Pull the blocks in a way that a hallway leading into the attic is revealed. When Lara pulls the switch, the basement door will temporarily open. Quickly run through the attic, and down to the main hall to reach the basement. Once in the basement, walk through to the second room and look in the tank on the right side. Inside is the key to the racecourse. To collect it, pull the block in the other room to the center. Climbing up to the hall that leads into the tank