This Teenage Mutant Ninja Turtles t-shirt shows Raphael, Donatello, Leonardo and Michelangelo as they appeared in Mirage comic books in 1984. In the Ninja Turtles' Mirage story line, four Turtles were exposed to the Mutagen when after a traffic accident with their young owner as a bystander. The Mutagen mutated them into a more humanoid form and more developed intellect. Splinter, a rat once owned by Ninjutsu master Hamato Yoshi, was also exposed. Splinter was fantastically smart and learned Ninjutsu by mimicking his master. Splinter trained the turtles to become ninjas and to fight against the forces of evil. For any fan of the heroes in a half shell, this Vintage Teenage Mutant Ninja Turtles T-Shirt is a must have!