Cheat mode
Pause game play and press [Up], [Right], [Left]. When cheat screen appears, line up the following icons to activate each effect.
Invincibility
Enter "Taser", "Grenade", "Key", "Goggles" as a code at the cheat screen.
Dim match (one hit kills)
Enter "Grenade", "Key", "Goggles", "Pistol" as a code at the cheat screen.