Teenage Mutant Ninja Turtles The Cowabunga Collection assembles thirteen classic TMNT games by KONAMI in one incredible package. This collection provides a unique opportunity for gamers to experience these immensely popular and very influential games on modern consoles and includes a fantastic set of new quality-of-life features. Added Online Play* for certain games and Local Couch Play. Save Anytime and Rewind. Eleven Japanese Regional Versions. Button Mapping. Unique Development Art & Sketches. Historic TMNT Media Content. The games are based on the characters and themes based on the 80's children's cartoon and comic book series, The Teenage Mutant Ninja Turtles. The game often takes place in a fictionalized New York City, in the sewers, inside futuristic enemy bases, and even across time itself!