Big Guns:
go to the inventory screen. press these buttons : L1, TRIANGLE, R2, L2, L2, R2,
CIRCLE, L1

Grenades:
Enter the following L1 L1 L1 L1 L2 L2 circle square square triangle triangle if
done correctly you will hear a double moan

Invincibiltiy:
In Pause Mode press: triangle, square, r1, L2, circle, square

All Weapons:
When you are in the game, go to the inventory screen by pressing select, now
press the following buttons in this order: L1,Triangle,R2,L2,L2,R2,Circle,L1.
You will hear Lara make a sound. Now press the X button and go back to the
inventory screen with select. YOu will now have access to all the weapons
available!!!

Submission: Bill

Level Skip:
While playing, go to your inventory screen by pressing SELECT, and press L2, R2,
TRI, L1, L1, CIR, R2, L2. Then, press SELECT to go to the next level. This codes
works for the PAL version, but has not yet been tested for the NTSC version.

NTSC (US) Codes:
All weapons and ammunition reload:
During game play, press Select to enter the inventory screen. Press L1,
Triangle, R2, L2(2), R2, Circle, L1 in the NTSC
version of the game. A sound by Lara will confirm correct code entry.
This code assumes that the buttons have been left in their default
configuration.

Level skip:
During game play, press Select to enter the inventory screen. Press L2, R2, L1
Circle, Triangle, L1, R2, L2 in the NTSC
version of the game. Then, press Select to skip to the next level.
This code assumes that the buttons have been left in their default
configuration.

All weapons and unlimited ammunition:
Win the game and load any saved level to access all weapons, unlimited
ammunition, and additional enemies.