Add weapon
At the "Press Start" screen, press Up, Down, Left, Right, Circle, Square, Up, Down, Left, Right, Circle, Square. When the game is paused the "Add Weapon" option will now appear .

All missions and gallery pictures unlocked
At the "Press Start" screen, press L2, R2, L1, R1, L1, L2(2), R2, L1, R1(2), R2.

Infinite ammunition
At the "Press Start" screen, press R2, R1, Triangle, L2, L1, Up, R2, R1, Triangle, L2, L1, Up.

Invincibility
At the "Press Start" screen, press R3, L3, Right, Left, L1, R1, R3, L3, Right, Left, L1, R1.

Psychedelic mode
At the "Press Start" screen, press Up, R2, Circle, Left, Triangle, Square, L2, L1, Circle, R1.

PS2 Cheats for ShellShock: Nam '67

ShellShock: Nam '67 cheat codes

ShellShock: Nam '67 cheats