Saki also sought vengeance for his brother and, using the persona of "The Shredder", he assassinated Yoshi and Shen. Over a decade later, the Ninja Turtles challenged Shredder to a rooftop duel to avenge Yoshi and Shen. Shredder sent his Foot Ninja to fight the Turtles, but they were no match for the Turtles and were eventually defeated. Shredder then fought the Turtles himself, and although he was a more skilled ninja than them, he was killed when he fell off a building carrying a grenade. In the later issues, Shredder was revived to take revenge on the turtles and then revived again as a clone made of worms with mutating as a shark before perishing for good.