Psi-Ops: The Mindgate Conspiracy Cheats for PS2

At the main menu, highlight Extra Content and press the R1 button. Enter these codes on the keypad that pops up.

Gameplay Cheats
All Powers - 537893
Bullet Resistant - 548975
No Head - 987978
Super Psi - 456456
Unlimited Ammo - 978945

Game Modes
Arcade Mode - 05051979
Cooperative Play Mode - 07041979
Dark Mode - 465486

Skins
Crispy Soldier - 454566
Dockworker - 364654
Edgar Barret - 497878
Edgar Barret (Training 1) - 196001
Edgar Barret (Training 2) - 196002
Edgar Barret (Training 3) - 196003
Edgar Barret (Training 4) - 196004
Edgar Barret (Training 5) - 196005
Edgar Barret (Training 6) - 196006
Jack - 698798

Extra Missions
Aura Pool - 659785
Bottomless Pit - 154897
Bouncy, Bouncy - 568789
Floor of Death - 05120926
Gasoline - 9442662
Gearshift - 154684
Gnomotron - 456878
Panic Room - 76635766
Psi Pool - 565485
Stoplights - 945678
Survival - 7734206
Tip of the Idol - 428584
TK Alley - 090702
Up and Over - 020615