The Grim Adventures of Billy & Mandy

The Grim Adventures of Billy & Mandy video game pits the characters from
the popular Cartoon Network television show against each other in an
adventure-fighting game, filled with mayhem and chaos. 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 to be the
last one standing. Players also have the option to play on their own or
with a friend in adventure mode, a series of 40 story-based missions
where players can unlock new weapons and additional playable characters
like Irwin and Hoss Delgado.