In an attempt to payback a debt to the Oni, Noi Tai Dar would attempt to sacrifice the friends of the Turtles and April O'Neil, gain hypnotic control over the mighty Warrior Dragon, and partially release the demon upon the Earth. However he was soundly defeated by the Dragon and the Turtle Team. Chien Khan is also known as the original employer of the famous assassin and Turtle ally, Ninjara.