The Grim Adventures of Billy and Mandy

S07E02 The Show that Dare Not Speak Its Name

While Grim steps out to meet an online acquaintance, Billy rummages through Grim’s trunk for amusement. He stumbles upon a mystical talking Rubik's Cube that inadvertently sets free a demon named Pinface, who amusingly sports bowling pins for a crown. Pinface calls forth his minions to seize control of Earth, but they are more enthusiastic about hosting a wild party instead. It turns out Grim has a history with Pinface, having previously dated his sister. In a twist, Billy's father manages to re-solve the cube by rearranging its stickers, imprisoning Pinface and his crew once more.