Cheat Codes Infinite Ammo: Pause the game and press X, X ,O, Square, Triangle, Triangle, Left, R2. Invincibility: To make yourself invincible pause the game and then press L1, R2, R1, R1, L2, R2. Restore Energy You can destroy any water source, i.e. fire hydrant, fountain etc. Then stand on the water and press the action button. Your energy will be slowly restored. You can also stand in front of a toilet and press action to restore your energy. Super Kick During a game, hold down then L1 and R1 buttons and then press Square to make Duke do a super kick.