One of three Kingdoms/Stages that a player can unlock outside of the Main Story is The Darker Side. Unlike other kingdoms found throughout the game, the Darker Side isn't actually a kingdom. Instead, it is a stage just off of Moon Kingdom - much like The Dark Side - the same kingdom you must go to in order to access the Darker Side. In order to unlock the Darker Side, a player must find and obtain a total of 500 Power Moons.