[prashant]

# Level skip

Pause the game and press Up, Down, Left, Right(2), Left, Circle. -From: devils422@hotmail.com
# Level select

Save the game and return to the main menu. Select the "Resume Game" option, then highlight the previously saved game and press Up, Down(2), Up, Left, Up, Right, Down. -From: devils422@hotmail.com
# Invincibility

Pause the game and press Square, Circle, Left, Right, Circle, Square. -From: infected@flashcom.net
# All weapons

Pause the game and press Left, Circle, Right, Square, Right, Left.
# Maximum ammunition

Pause the game and press Left, Right, Circle(3), Right, Left. -From: infected@flashcom.net
# All characters

Pause the game and press Left(2), Circle(2), Right, Left, X.
# Fatboy Mutator

At the title screen, press Circle(3), Up, Down(2), Up, Circle(3). Select multi-player mode and choose the "Fatboy Mutator" selection. Get killed to have the new Mutator get thinner. Get a kill to have the Mutator get bigger. -From: devils422@hotmail.com
# Stealth Mutator

At the title screen, press Square(2), Circle(2), Square(2), Circle(2). Select multi-player mode and choose the "Stealth Mutator" selection.
# Big head mode

At the title screen, press Left, Right, Left, Right, Left, Right, Circle(3). Select multi-player mode, highlight the "Mutators" option and press X. Highlight the new "Big Head" option, then press Right, X.
# Firewire multi-player mode

Note: This trick requires a four port Firewire PC hub. Use Firewire cables to connect the iLink port of one to three more PlayStation 2 consoles to the hub. Pause the game in two player multi-player mode and press Left, Circle, Left, Right, Square, Right. Have all players press Start at the waiting screen.
# USB multi-player mode

Note: This trick requires a USB keyboard and USB mouse. Change the controller configuration to set the keyboard to player three and the mouse to player four. The game can now by played with four players.
# Bonus levels

Successfully complete the game on the inhuman difficulty setting to unlock 7 death match and 4 capture the flag levels. No additional two player levels will be unlocked.
# 999 Redeemers

Enable the "Invincibility" code when in the Face's Of World level for capture the flag. Get the Redeemer from the middle of either castle. They are found on the left hyper link. Then enable the "Maximum ammunition" code to get 999 Redeemers. Fall out of space and you will not die. Just press R2 to shoot the controllable rocket.