Krangenstein Lives!

Down in the sewers, while the other three Turtles are busy practicing their ninja arts training, Michaelangelo is busy playing computer video games, meanwhile, under the Arctic Ocean, while Bebop and Rocksteady are also busy playing video games, Krang is tuning up his Robotic Body. And while no one is looking, Bebop and Rocksteady inadvertently destroy an important computer chip and surreptitiously replace it with one from a hand-held computer video game player. When Krang's Robotic Body goes on-line -- havoc ensues! Krang's Robotic Body ""thinks"" it is playing a video game. It escapes into a Transport Module and arrives in the Turtles home town -- followed by Shredder, Bebop, and Rocksteady in pursuit.
However, upon arrival, Shredder falls down a big hole, knocks himself out, and temporarily loses his memory, Krang's Robotic Body is on the loose, destroying everything it its path in its quest to win the ""game.""
Later, thanks to Bebop and Rocksteady's ""loose lips,"" the Turtles learn the

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S06E03 - Super Irma