: This season introduced the Punk Frogs (Attila, Genghis, Rasputin, and Napoleon), four frogs Shredder accidentally mutated to counter the Turtles. It also featured the first appearance of Baxter Stockman 's transformation into a fly in "Enter: The Fly".
: The season concludes with " Return of the Technodrome ," where the Turtles must prevent Shredder and Krang from bringing their massive fortress back to Earth. 2. Teenage Mutant Ninja Turtles (2003 Series) Teenage Mutant Ninja Turtles - Season 02
: The season begins with the Return of the Shredder from Dimension X. A major recurring arc involves the search for fragments of the Eye of Sarnoth , a powerful alien crystal that Shredder uses for various schemes, such as shrinking the Turtles. : This season introduced the Punk Frogs (Attila,