The Grim Adventures of Billy & Mandy

Roller Coaster of Horrors is a fast-paced action game where Billy, Mandy and Grim must use their powers to survive a crazy roller coaster ride through the underworld. Attack or jump obstacles and collect coins to unlock new tracks and build your own ride in the roller coaster editor. Play more Billy and Mandy games and other free online games at CartoonNetwork.com.