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 being underground, since his rat-like abilities make him quite the burrower. This mystical rat uses his cunning, as well as his bow and sword cane, to thwart the evil Foot Clan. Splinter has trained the Turtles to fight for truth, justice, and an equal portion of food!