These codes change how the game looks and plays. Some are purely cosmetic; others affect enemy AI.
| Cheat Effect | Button Sequence (Enter on Pause Screen) | | :--- | :--- | | | Up, Up, Down, Down, Left, Right, Left, Right, Circle, Square | | 100% Adrenaline Meter | L + R + Left, Left, Right, Right, Up, Down, Up, Down | | Invisibility (Enemies cannot see you) | L + R + Up, Down, Triangle, Circle, Left, Right, Square, X | | Invincibility (No damage from attacks or guns) | L + R + Left, Right, Left, Right, Up, Down, Up, Down, Circle | Manhunt 2 Psp Cheat Codes