A Z-type mutant is a living being infected with the Z-type virus. The mutation can vairy in shape, size and even colour. A simple mutant will become a Zombie like creature without the need to feed on human flesh. Instead they vomit innner acids and realese the virus into the area. A slightly larger mutation will cause the infected to crave flesh but not human flesh. This if effectivley a zombie. A even larger mutation will cause physical body changes. General deformalitly such as random blobs and large spinel growth. The victim will also gain claws.