ShellShock: Nam '67 Cheats

God mode
Click [Right Analog-stick], [Left Analog-stick], press [Right], [Left], [L], [R], click [Right Analog-stick], [Left Analog-stick], press [Right], [Left], [L], [R] at the "Press Start" screen.

Unlimited ammunition
Press [Black], [R], [Y], [White], [L], [Up], [Black], [R], [Y], [White], [L], [Up] at the "Press Start" screen.

Add weapon
Press [Up], [Down], [Left], [Right], [B], [X], [Up], [Down], [Left], [Right], [B], [X] at the "Press Start" screen. The "Add Weapon" option will now appear when the game is paused.

All missions and gallery pictures unlocked
Press [White], [Black], [L], [R], [L], [White]x2, [Black], [L], [R]x2, [Black] at the "Press Start" screen.

Psychedelic mode
Press [Up], [Black], [B], [Left], [Y], [X], [White], [L], [B], [R] at the "Press Start" screen.