Uncle Grandpa has accidentally crashed through a fiery dimension while driving his RV while dozing off, sending him tumbling through some of Cartoon Network’s most adored and well-known worlds, including Adventure Time, Gumball, Steven Universe, Regular Show, Clarence, and of course Uncle Grandpa! The protagonists of these shows must now band together to fight an unknown population of enemies that have been let loose in these realms.

Inside is a game download code.