- Playstation
Level Select
At the Cheats screen press Circle X Square Square X Square Circle.
Invincibility
At the Cheats screen press L1 Square Circle Circle Square L1 L2.
All Weapons
At the Cheats screen press R2 X L1 Square R1 Circle L2.
Infinite Ammo
At the Cheats screen press L2 Circle R2 Square Circle L2 R1.
Double Damage
At the Cheats screen press Square Square Square Circle Circle Circle X.
Temporary Invincibility
At the Cheats screen press L1 L1 L1 L1 L1 L1 R2.
Invisibility
At the Cheats screen press Square X Circle Square X Circle Square.
Full Ego
At the Cheats screen press R1 R1 Circle Circle L1 L1 R2.
Full Armor
At the Cheats screen press L1 L1 R1 R1 X X Circle Circle.
First Person View
At the Cheats screen press L2 R1 L1 R2 Circle X Square.
Big Head Duke
At the Cheats screen press Square Square X Circle Circle X Square.
Small Head Duke
At the Cheats screen press Square X Circle Circle X Square Square.
Big Head Enemies
At the Cheats screen press X X R1 X L1 X.
Small Head Enemies
At the Cheats screen press X L1 X R1 X X.
Wacky FMV Sequences
At the Cheats screen press L1 L2 R1 R2 Circle Circle Square Square.
Outtake FMV Sequences
At the Cheats screen press L1 L2 R1 R2 Square Square Circle Circle.
Ending FMV Sequence
At the Cheats screen press Circle R2 L1 Square L2 X R2.
Unlock All Cheats
At the Cheats screen press L1 L2 R2 R1 L1 L2 R2 R1 L1 L2 R2 R1 L1 L2 R2 R1 Circle Circle Circle Circle X X X X Square Square Square Square Select Select Select Select.