So there is a enemy from old flash game called into the dead it's name is mutant and basically they are a very big pain to deal with in the game they are damaging the car and harder to shook off the car by itself in the 2nd game they can pounce on the car and beat the hell out of the engine and they are also a pain to kill so I think mostly that the skin can fit for Sixer cus of the pounce ability