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Totally awesome and hilarious character from the Nickelodeon cartoon Jimmy Neutron: Boy Genius, famously known for his obsession of anything having to do with the superhero Ultra-Lord. He is also known for saving his hometown from a monstrous alien by singing horribly, learning how to communicate with pterodactyls, and mastering the art of placing your foot behind your head. He even got his own spin off show called Planet Sheen, but it didn't really do as well
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