Unlock Alternate Intro:
Complete the game, then start another game to view an alternate introduction sequence.
Conserve Revolver Ammo:
Instead of waiting for the person in the electric chair to die, kill him with the sickle that is found in the cell.
During gameplay hold L + R + X and enter one of the following codes:
Full Health Meter:
Down, Down, Down, A, Up, Up, Down, Up, A.
All Weapons and Items Except Gonzo Gun:
Down, Up, Down, Left, Right, Left, A, Up, Left, Down, Right, Up, Right, Down, Left, A, Down, Down, Down, A, A.
Get Gonzo Gun:
Left, A, A, A, Right, Left, Right, Left, Up, A, A, A, Down, Up, Down, Up, A.
Refill Ranged Weapon Ammo:
Left, Left, Up, Down, Right, Left, Right, Right, A.
Refill Gun's ammo:
Right, Right, Down, Up, Left, Right, Left, Left, A.
Negative Karma:
Left, Left, Down, Up, A.
Molotov Cocktails:
Down, Down, Down, Up, Up, Up.
Grenades:
Right, Right, Right, Left, Left, Left.
Xombium Bottle Full:
Right, Right, Up, Up, A, Left, Right, A, Right, Up, Right, A.
Suicide:
Down, Down, Down, Down.