Unlock all skins in Multiplayer: Down, Left, Up, Left, Right, Down, Left, Up.
Pause the game and enter the following cheats.
Full Eye Power: L1, R1, L1, L2, L2, R2, R1, L2
Full Health and Armor: R1, R1, R2, L2, R2, R1, L1, R2
Unlock Eye Powers: L1, L1, R2, R2, R1, R2, L1, L2
