Teenage Mutant Ninja Turtles Season 1 -

: Reviewers from IGN praised the season for its "fluid, fast-paced" action and its "show within a show," Space Heroes .

: The Turtles celebrate their 15th "Mutation Day" and visit the surface for the first time, encountering pizza and the alien Kraang .

: The season finale, "Showdown," features a massive battle against the Kraang and Shredder, revealing that Shredder's daughter, Karai, is actually Splinter's lost daughter . Recent Reboots