Teenage Mutant Ninja Turtles, Season 2

Ultimate Ninja:
(Narrating) I am a great warrior, the Daimyo's son and a ninja of ultimate power. I should be feared and revered. But, I once visited a realm called Earth, where I challenged the warrior known as Leonardo to a mortal duel. I was defeated and worse, humiliated by the appearance of my father, the Daimyo, who dragged me back home. My father is mired in outdated traditions. He believes that warriors should duel only for sport and under the official rules of the Battle Nexus tournament. His tournament. I believe that glory can only be achieved by fighting to the death. That is why I must take the throne from my father, and at the same time, I shall take my revenge on Leonardo. The poison from my dart courses through his reptilian veins. Leonardo's demise will be my first victory. All shall bow down before me as master of the multiverse!