Insta-Kill

Insta-Kill power-up
===            The Insta-kill power-up is dropped when killing zombies. There is no proof of an "For sure Insta-kill.". The item gives you the ability to kill regular, Creepy Crawlers, and Hellhounds. in one shot with any gun or weapon. However it does not affect "boss" zombies. I guess they did that to make the game itself harder.===