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, Circle.
 
 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.