Cheat Codes Choose an empty save slot and enter your name as ICHEAT. Then, enter one of the following codes during gameplay. (Use the D-Pad, not the joystick, to enter directional commands. Cheat Enabled Button Combo All Weapons A, Right, Down-C, Right-C, Up-C, A, Left Fat-Legged Aliens Left, A, Right, Down Mutant Alien (While Facing Harvester) Down-C, Up, Z, Z, Right-C Serious Weapons Down-C, Up-C, Up, Z, Z, Left, Right-C Surreal Down-C, Up, Right, Right, Right-C, A, Left Restore Health Down, Up, Right, A, B, Left, C-Right All Artifacts Up, C-Down, C-Right, Z, Up, Left Dancing Adam Down, Up, C-Up, Down, C-Right, C-Right Bad Adam C-Left, C-Right, A, C-Down, C-Right, Left Extra Difficulty Levels At the Difficulty Selection Screen, keep pressing Left for Very Easy or Right for Very hard.