Rise of the Teenage Mutant Ninja Turtles Season 2 Episode 11 - Battle Nexus New York Episode Title:Battle Nexus New York.Episode Description:Big Mama transforms New York into one big Battle Nexus. Raph, Leo, Mikey, and Donnie are paired up with Ghostbear, Carl Sando, Meat Sweats, and Hypno-Potamus against the Battle Nexus champion Troll, Sprite, Amphisbaena, and Cortex in different challenges. Meanwhile, Splinter, April, Baron Draxum, Todd, the Foot Recruit, and the people of New York are put on a cruise that is surrounded by a mystical barrier within the orb as they work to escape. Even when they beat their challengers, the Turtles will still have to contend with Big Mama's latest champion, Shadow Fiend, whose identity is someone they'd least suspect.