Though it was never officially translated for the US, a fansub version exists on the internet.
There are two episodes;
- The Great Crisis of the Super Turtles! The Saint Appears!: The Turtles discover the Muta Stone and free the fairy Crys-Mu who gives them the power Super Mutation which turns them into Super Turtles for three minutes. However, Shredder and Krang have the Dark Muta Stone, and try to awaken the evil fairy Dark Mu to destroy the world.
- The Coming of the Guardian Beasts - The Metal Turtles Appear!: The Turtles, along with April and Master Splinter, go to Japan to help a ninja clan headed by Kinzo Hattori, who are being haunted by an evil ghost. At the same time, Shredder, Bebop and Rocksteady have arrived hoping to steal the Tablet of the Seven Elements to gain the power of the Guardian Beasts.
These animated films provide examples of the following tropes:
- And Then What?: Of their plan to destroy the Earth, Shredder asks Krang where they're supposed to live afterwards. Krang figures they can stay in Dimension X, much to Shredder's displeasure.
- Energy Ball: Shredder shoots out these after he is turned into a giant dragon monster by Dark Mu. Splinter easily deflects one.
- Henshin Hero: Our Heroes In a Halfshell are made into these.
- Heroic Sacrifice: Crys-Mu sacrifices herself to stop Dark Mu by grabbing her from behind, and the Turtles have no choice but to strike both of them dead.
- Light Feminine and Dark Feminine: Crys-Mu and Dark Mu.
- Merchandise-Driven: The various transformations are basically commercials for the Japanese toyline.
- Rings of Activation: The Turtles' merging into Turtle Saint is completed by a beam of purple rings materializing as Turtle Saint appears.
- A Rotten Time to Revert: In one episode, our heroes have fused bodies into an all-powerful "Turtle Saint" mode; unfortunately, the fusion will only last 60 seconds. Doubly unfortunately, the Turtle Saint is in outer space, and once they revert, they'll begin fatally asphyxiating. Somehow, during the time between reverting into their own bodies and dying in space, our heroes get picked up by a space shuttle.
- Secondary Adaptation: The Teenage Mutant Ninja Turtles franchise, which had begun as a comicbook series, had a successful western cartoon, so were getting toys made by Takara. Two Original Video Animation movies were made by Ashi Productions; The Great Crisis of the Super Turtles! The Saint Appears! and The Coming of the Guardian Beasts - The Metal Turtles Appear!.
- Sibling Fusion: The Turtles can merge into a being known as the Turtle Saint.
- Sunken City: Dark Mu's influence in the first episode causes various natural disasters around the world, one which has New York being flooded.
- Tomboy and Girly Girl: April (Tomboy) and Crys-Mu (Girly Girl).
- Villains Out Shopping: Foot clan's robot ninjas take no part in the action of the first episode because they're all on a beachgoing vacation.
- You Don't Look Like You: Shredder has an entirely differently appearance here than he does in the regular 'toon. And it's different between both episodes at that.