Olympus Coliseum is a world that appears in Kingdom Hearts, Kingdom Hearts Chain of Memories, Kingdom Hearts II, Kingdom Hearts 358/2 Days, Kingdom Hearts coded, Kingdom Hearts Birth by Sleep, Kingdom Hearts X, and their subsequent remasters. It is based on the 1997 Disney animated film Hercules.
Olympus Coliseum is one of the most frequently appearing worlds of the Kingdom Hearts series. It consists of both the Coliseum and the Underworld underneath it and is plagued by the antics of the Underworld's ruler, Hades. The world often serves as home to a battle arena mini-game that the player can compete in for rewards and leveling experience.