Mutant Turtles: Superman Legend (1996)

When the Teenage Mutant Ninja Turtles acquire Mutastones from Crys-Mu, the spirit of light, they acquire the ability to enhance themselves into Super Turtles for a duration of three minutes. Meanwhile, the evil Shredder and his minions Bebop and Rocksteady stumble upon the Dark Mutastone, which transforms them into Devil Shredder, Supermutant Bebop and Supermutant Rocksteady, respectively. But the Turtles have one more trick up their shells: all four of them can combine into their ultimate form—Turtle Saint.

Cast

Daiki Nakamura

Leonardo (voice)

Hidenari Ugaki

Donatello (voice)

Hiroyuki Shibamoto

Raphael (voice)

Toshiharu Sakurai

Michelangelo (voice)

Emi Shinohara

April O'Neil (voice)

Hideyuki Umezu

Splinter / Krang (voice)

Kiyoyuki Yanada

Sawaki Oroku / Shredder (voice)

Kyousei Tsukui

Bebop (voice)

Hidetoshi Nakamura

Rocksteady (voice)

Rei Sakuma

Crys-Mu / Dark Mu (voice)