Rap Rat is the titular character of The Video Board Game Rap Rat, a 1992 board game with the gimmick of playing along to a VHS tape. As his name suggests, he's an anthropomorphic rat who enjoys rapping... at least, what he thinks is rapping, but it usually amounts to repeating words. He was portrayed by a puppet (often criticized for its uncanny appearance), and voiced by the late Doug Williams. The object of the game was to roll dice and collect pieces of a jigsaw puzzle. All the while, Rap Rat would occasionally interrupt the game and issue a penalty to the player currently holding the die, creating pressure to finish one's turn as fast as possible. If no player had a complete puzzle by the end of the game — a likely outcome, as the penalties he issued near the end of the game were unreasonably harsh — then he would declare himself the winner.

Though the game remained obscure for two decades, he gained newfound notoriety in the early 2010s due to being the antagonist of a creepypasta portraying him as the alter-ego of the demon Aparat, summoned in revenge by the mother of a child laborer who was killed in the unsafe working conditions of the factory that manufactured the puppet, and thereafter haunting anyone unfortunate enough to watch the tape.

"If he asks you to do something, you must do it. Because he's Rap Rat, and he's the boss."