The Grim Adventures of Billy & Mandy video game pits the characters from the popular Cartoon Network television show against each other in a fighting-adventure game, filled with mayhem, chaos and over-the-top graphics. In battle mode, up to four players can use a multitude of weapons in destructible arenas like the "Desert of Doom" and the "Underworld" to battle it out and be the last one standing. Players also have the option to play on their own or with a friend in mission mode. There are a series of 45 story-based missions which will encourage players to unlock new weapons and characters like the Boogey Man and Jack O'Lantern.