Secret Level:
In the Throg Breeding Facility you'll find a secret entrance to the "Lost City". Look for it in the
lower right-hand corner of the map.
You'll need to break through three or four secret doors to find this exit, but it's well worth it.

Shield
Press and hold RIGHT, then press CIRCLE, SQUARE, TRIANGLE. Release RIGHT and
hold LEFT, then press SQUARE, CIRCLE, X. Release LEFT and unpause the game to
activate your shield. If you did it right, the word "Cheater" will appear.

Health:
Press start and highlight review mission, then do this cheats. Hold square, press O, X, triangle,
release square and hold O, press square, X,
triangle, release O.

Cloak:
Press start and highlight review mission, then do this cheats. Hold triangle, press square, O, O,
square, release triangle, hold X, press
triangle, triangle, release X.

Speed:
Press start and highlight review mission, then do this cheats. Hold up, press triangle, triangle,
triangle, release up, hold down, press X,
square, O, release down.

Unlimited Health:
Pause the game and highlight the "Sound Volume" selection. Then, hold Right and press Circle,
Square, Triangle. Hold Left and press Circle, Square, and X. If you entered the code correctly, the
word "Cheater" will appear at the top of the screen.

Predator:
Pause the game and highlight the "Sound Volume" selection. Then, hold Triangle and press Square,
X(2) Square. Release Triangle, hold X, and press Triangle(2). If you entered the code correctly, the
word "Cheater" will appear at the top of the screen.

Refill Ammunition:
Pause the game and highlight the "Sound Volume" selection. Then, hold Circle and press Square.
Release Circle, hold Triangle, and press X. Release Triangle, hold Circle, and press X. Release
Circle, hold X, press Square. Release X. If you entered the code correctly, the word "Cheater" will
appear at the top of the screen.

End Level:
Pause the game and highlight the "Sound Volume" selection. Then, hold X, Up, Down, Up. Hold Square
and press Circle. Release Square, hold X, and press Triangle. Release X. If you entered the code
correctly, the word "Cheater" will appear at the top of the screen.

Body Slide:
Pause the game and highlight the "Sound Volume" selection. Then, press Up, Down(2), Up. Hold Square
and press Circle. Press Triangle, X (or X, Triangle). If you entered the code correctly, the word
"Cheater" will appear at the top of the screen.

Test Mode:
Pause the game and highlight the "Sound Volume" selection. Then, press Left, Right(2), Left. Hold X
and press Triangle. Hold Triangle and press X. If you entered the code correctly, the word "Cheater"
will appear at the top of the screen.