Various cheats
     At  the  main  menu  select  "Classified Files" and press X. Then
enter the following codes:

Cheat Code:             Effect:
TEAMBUDDIES             Invincibility
BLASTRADIUS             Unlimited Ammo
KINGSLEY                Level Select
KREUZLER                Bonus Level 1
SHEARER                 Bonus Level 2
UBERDOOPER              Bonus Level 3

Mini-Game:
     Use  the  "Bonus  Level  3"  code then hold up on the left analog
stick  and  press  Square, Triangle, Circle, Triangle , Square, Circle
when  the bonus level intro sequence begins. Press X to stop the intro
sequence.  Press  X  to  move in the mini game, and Triangle to change
views.