**Mutagen, also known as Mutagenic Ooze, is a mucilaginous, radioactive, cyan colored, glowing chemical substance that has served as a key plot device in nearly every medium of the Teenage Mutant Ninja Turtles. Any creature that is exposed to mutagen will be affected in a myriad of ways, from growing in size and intellectual capacity, merging with inorganic materials such as metal, or gaining superpowers such as telepathy or telekinesis. It is responsible for mutating. the Mutagen is depicted as having several similar properties to the version seen in the 1987 TV series; It blends with the victim's genetics with that of whatever creature that they have last made contact with. It has a glowingly cyan/green coloration to it. **