Weapons: Ninja Bow, Sword Cane, Ninja Stars Birthplace: Osaka, Japan Height: 4' Weight: 125 lbs. Age: Unknown Previous Forms: Hamato Yoshi, homo sapien/sewer rat Splinter, the rat mutation of ninja master, Hamato Yoshi, is the Turtles' "shidoshi" (teacher of the warrior ways of enlightenment). As a man - and still as a sewer rat - Splinter has a special fondness for the arts, especially martial arts. He also digs the underground, since his rat-like abilities make him quite a burrower.