Hattori, Kinzou

服部キンゾウ

Hattori leads a clan of Ninja and is an old friend of Splinter's, residing in Shinobi Village in Japan. After Hattori sends a message to Splinter requesting help, Splinter, April O'Neil, and the Ninja Turtles all fly to Japan. Upon arriving at Shinobi Village, Hattori explains that he needs assistance with a set of Magatama embedded in a magic mirror known as the Mi-Yuu-Tai-Shi, which sounds like Myuta-Ishi, or Muta-Stones.
Shredder arrives with Bebop and Rocksteady to steal the mirror. To protect it, Hattori causes the castle to grow taller, placing the mirror on top of the roof. Everyone realizes they must climb the castle and claim the Magatama before the opposing side does. Despite a valiant effort by Kinzo's ninja crew, Shredder's group reaches the stones first and uses three of them to transform. The Turtles use the four remaining stones to transform and fight back. The sides are pretty evenly matched, but as Kinzo reveals, they can only stay in their Metal Form for six minutes. Since Shredder and his men transformed well before the Turtles made it up to the roof, this puts them at a significant disadvantage.