 All versions of "Gamma World" eschew a realistic portrayal of genetic mutation to one degree or another, instead giving characters fantastic abilities like psychic powers, laser beams, force fields, life draining and others.Other mutations are extensions or extremes of naturally existing features transposed from different species, such as electrical generation, infravision, quills, extra limbs, dual brains, carapaces, gills, etc.These were offset with defects that also ranged from the fantastical - such as skin that dissolves in water, or a scent that attracts monsters - to the mundane, such as seizures, madness and phobias.