- Infinite Health: Hold L2 + R2 and press Left, Up, Right, Down, Left, Right, Up, Down (L2, R2, Left, Up, Right, Down, Left, Right, Up, Down)
- Infinite Ammo: Hold L2 + R2 and press Up, Down, Left, Right, Up, Down, Left, Right, Up, Down (L2, R2, Up, Down, Left, Right, Up, Down, Left, Right, Up, Down)
- All Weapons: Hold L2 + R2 and press Left, Left, Right, Right, Up, Down, Up, Down (L2, R2, Left, Left, Right, Right, Up, Down, Up, Down)
- Full Health: Hold L2 + R2 and press Left, Up, Right (L2, R2, Left, Up, Right)
- Full Ammo: Hold L2 + R2 and press Up, Down, Left (L2, R2, Up, Down, Left)
- Reload Weapons: Hold L2 + R2 and press Right (L2, R2, Right)
- Disable AI: Hold L2 + R2 and press Circle (L2, R2, Circle)
- Enable AI: Hold L2 + R2 and press X (L2, R2, X)
- Toggle God Mode: Hold L1 + R1 and press L2 + R2 (L1, R1, L2, R2)
- Suicide: Hold L1 + R1 and press L1 + R1 (L1, R1, L1, R1)
- Change Level: Hold L1 + R1 and press the following buttons:
```
- Atlantis (level 1): X, Triangle
- The Great Wall (level 2): Circle, Square
- Lud's Gate (level 3): Square, Circle
- The Lost Library (level 4): Triangle, Circle
- Floating Islands (level 5): Triangle, Square
- Dragon's Lair (level 6): Square, Triangle
- The Catacombs (level 7): Circle, X
- The Sanctuary of the Scion (level 8): X, Square
- The Hall of Seasons (level 9): Triangle, X
- The Final Battle (level 10): Circle, Triangle
```
To activate the cheat codes, hold down the L2 and R2 buttons on your controller and then input the button combinations listed. The cheat codes will remain active until you either quit the game or die.