The Grim Adventures of Billy and Mandy (2001)

Episode Overview

After a mishap on his bike, Billy receives an enigmatic tricycle from a strange boy inside a mystical porta-potty. Thrilled with his new ride, which he names Trykie, Billy soon faces ridicule from Irwin, Pud'n, and Sperg. However, Trykie reveals its sinister side by launching an attack on the trio. Mandy quickly deduces there's something wrong with Trykie, and Grim confirms its cursed nature. Coming to terms with the tricycle's malevolence, Billy decides to let Mandy put an end to Trykie's reign of terror once and for all.