Mutants

Brute: A giant form of standard zombie that can smack down humans to pool of blood.

Zombie: The standard form of zombie, you know drill.

Fast Zombie: A standard form of zombie but with boost.

Mega Speeder Zombie: A faster form of speeder zombie on MEGA boost. They normally hold a device to make them speed that fast.

Hitman: A standard form of zombie, BUT WITH GIANT SINGLE ARM.

Head Crabs: Small aliens that hop on humans heads and turn them into zombies.

Crusher: A even stronger form of Hitman, what make this special is that IT HAVE TWO GIANT ARMS. Also it skin is more harder to destroyed.

Demon: A human bat-like mutant, it can fly and act deadly.

Gojira: A giant gecko mutant. They normally can destroyed buildings and set things on fire.

Hounds: A infected dog, luckily still some ways to friend hounds. Be careful though, as some still be hostile and betray their new owner.

Behemoth: A much more giant, older, stronger, harder form of Brute. They normally have more light green color, also scrap armor and deadly weapons on them.

Chupacabra: A ugly more smart form of Hounds, they sneak behind and eat your guts in within seconds. They normally have two heads and stay on two legs.

Lepers: A form of standard zombie that still have soul to do basic things or if lucky, perfect human actions. They decade more easily.

Bruisers: A special form of Brutes, they more reddish and bit more tiny, they have tribesmen personalizes.

X Parasite: A parasite that control and eats on mutant bodies and human bodies, they cause many forms of mutants.

Mudman: Lepers who more stronger and smarter, they trained how to dodge danger. They hide themselves inside hoodies or bandages for safety reasons.