In "Super Zero", Grim grants Billy's wish to be a superhero, and he then goes to fight an Evil Empire. Meanwhile, Grim has to put up with Billy's inept father. In "Sickly Sweet", Billy and Grim put the Mask of the Beast on Mandy's face to coerce her into being a kinder, gentler person. Unfortunately and unsurprisingly, however, it all backfires on them. Written by
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I'm gonna open up my own personal can of Powerpuff on you two.
References Codename: Kids Next Door