Dark Mu

Dark Mu is a character appearing in Mutant Turtles: Chōjin Densetsu Hen. She is the primary antagonist of the first episode; a small, fairy-like creature, who is capable of easily destroying worlds. Her good counterpart is Kris Mu.

Dark Mu is awakened by Krang, and upon release, powers up Shredder into the massive Dark Devil Shredder. After Dark Devil Shredder is defeated by Donatello and April O'Neil, Dark Mu retreats to outer space in order to destroy the Earth. The Turtles fuse together to become Turtle Saint, and use their special move, Mega Final Saint Break.