: The Turtles celebrate their 15th "Mutation Day" and visit the surface for the first time, encountering pizza and the alien Kraang .
The debut season began as a in December 1987, establishing the core "turtle-mania" tropes.
: The season concludes with the Turtles infiltrating the TCRI building , discovering their origin's link to the Utrom aliens, and Splinter mysteriously disappearing. 2012 Animated Series (Nickelodeon) Teenage Mutant Ninja Turtles Season 1
: Critics from Rotten Tomatoes note it as "hip, playful and witty," though it is famously more comedic and campy than the original Mirage comics. 2003 Animated Series (4Kids)
: 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"
This version was designed to be a more .
: It introduces the mutation of Hamato Yoshi into Splinter and the Turtles' first meeting with reporter April O'Neil . 2012 Animated Series (Nickelodeon) : Critics from Rotten
: 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