: Major arcs include the "Notes from the Underground" trilogy and "The Shredder Strikes Back".
: Reviewers from IGN praised the season for its "fluid, fast-paced" action and its "show within a show," Space Heroes . Teenage Mutant Ninja Turtles Season 1
: Shredder, Krang, Bebop, and Rocksteady are introduced as the primary antagonists operating out of the Technodrome . : Major arcs include the "Notes from the
: The Turtles celebrate their 15th "Mutation Day" and visit the surface for the first time, encountering pizza and the alien Kraang . : The Turtles celebrate their 15th "Mutation Day"
This season transitioned the franchise into with a heavy focus on character growth and humor.
: 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)
: It features a darker aesthetic with heavy shadows and no pupils in the Turtles' masks.
