ShellShock: Nam '67
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(2), Black, L, R(2),
Black at the "Press Start" screen.
Psychedelic mode:
Press Up, Black, B, Left, Y, X , White ,L, B ,R at the
"Press Start" screen.