The passwords below start the game with 99 lives and all DNA keys.

Compy   X,X,O,T,S,X,S,X,O,S,T,S
HUNTER  S,S,T,O,X,S,S,S,S,X,O,T
RAPTER  X,X,O,T,S,X,S,X,S,S,T,O
T-REX   X,X,O,T,S,S,S,X,T,S,T,S
PREY    S,S,T,O,X,X,S,S,T,X,O,T

In the first level, run left instead of right and you will get an extra life. Every time you die you can pick up this extra life and have the same amount of live as when you started!

While playing, press L1+Up+X+Square. Hold these buttons down Until your gun stops shooting darts.

Important: This code only works in Human and Prey levels.

On any of the Human Prey or Hunter levels, hold L1 + Up, then jump and shoot. You will now be able to fly around and shoot extremely rapidly. As long as you are shooting rapidly you will be invincable.

At the Password Screen press Square, X, Circle, Triangle, Triangle, X, Square, Circle, Triangle, Circle, X, Square. This must be done three times.

At the "Press Start" screen press Triangle, X, Square, Triangle, Circle, X, Square, Circle, Square , Triangle, X, Circle. The game will start but sound effects will be off. Now exit the game, fix the sounds (in Options) and re-enter the code.

Enter these codes at the Password screen. In the passwords below, S = Square, X = X, O = Circle and T = Triangle.

Character  Password
Hunter     S,X,O,T,X,O,S,T,S,X,O,X
Prey       T,X,T,X,O,X,S,T,T,S,O,X
Raptor     S,X,O,T,X,O,S,T,X,S,O,X
T-Rex      T,S,O,S,X,T,T,O,S,T,T,X

To view a gallery, enter one of the passwords below. In the passwords below, S = Square, X = X, O = Circle and T = Triangle.

Gallery   Password
Compy     X,T,T,S,X,O,T,S,T,O,X,O
General   S,O,S,O,O,O,S,O,S,O,S,O
Hunter    T,X,S,T,O,X,S,O,T,S,X,O
Prey      T,S,O,S,X,T,T,O,X,S,T,T 
Raptor    O,S,T,X,O,T,S,X,O,S,X,T
T-Rex     T,T,O,S,T,X,T,S,S,X,T,O
Sarah     C,C,X,X,T,X,T,S,X,X,T,T

At the password screen type:X,square,triangle,X,X,O,square,triangle,x,square,O,O

To play as sarah type in password: triangle,X, triangle,X,O,X,square,triangle,triangle,square,O,X