Enter reb00 as a profile name. Note: Your score will remain at zero while this code is in effect. All missions will now be unlocked. Select a mission. Press Start to pause game play. A new "Cheats" option will now appear. Select it to enter a menu where the following cheat options can be toggled on or off: "God Mode", "Infinite Ammo", "Infinite Projectiles", "Silent Mode", and "Invisible Mode".