Nothing is known about the origin of Tsunami's powers or how he came to join the Justice Force. It is known that he comes from Japan, however, and based on his appearance and powers, it is likely that he is either a mutant or a crossbreed between a human and a Yokai (Japanese spirit) of the sea.
Tsunami first appeared in action during the Triceraton invasion of Earth alongside Silver Sentry, Ananda, and Metal Head. He successfully destroyed several Triceraton fighters with his powers, but was ultimately defeated when he was hit by an energy blast from a Triceraton homeworld ship and slammed into Chrysalis, making them plummet back to Earth.
Tsunami next appeared fighting Nano, who was at that time highly confused following a botched reprogramming attempt by Baxter Stockman and was compelled to attack the Justice Force, which was luckily averted by Michelangelo and Leonardo. Later on, Tsunami and the rest of the Justice Force joined the Turtles' assembled strike force against the demonic hordes of the Tengu Shredder.
Tsunami appears in the episode The Journal.
Powers and abilities
Tsunami is an aquakinetic, capable of controlling water. His preferred mode of transportation is to ride a slide consisting of pure water. If need be, he can use water drawn from the slide or ambient water vapor to form attacking pseudopods or physical shields.
While evidence is not provided in the series, owing to the nature of his power it is conceivable that Tsunami is also able to survive underwater. In Space Invaders, Part 2 he also demonstrates the ability to fly, but whether it was under his own power or bestowed by a device remains unknown.
- He shares the same name with a DC Comics superheroine.