Bonus Rooms are hidden rooms in Super Smash Bros. Brawl and Donkey Kong Country Returns. In Super Smash Bros. Brawl, Bonus Rooms, also known as hidden rooms, are found in certain Doors in The Subspace Emissary. Entering the Door takes the player to a Bonus Room. Bonus Rooms always have Turquoise Cubes and Orange Cubes, but very few have enemies inside them. Sometimes, moving platforms or obstacles are inside Bonus Rooms and are required to reach the Cubes. Bonus Rooms are found in almost every level of The Subspace Emissary. They are usually not on the path that is taken to the next room. The player must go searching for hidden Doors to enter them. Some Bonus Rooms do not have Turquoise Cubes, but still are required to increase the game's clear percentage. In Donkey Kong Country Returns, Bonus Rooms, also known as Bonus Areas or Bonus Levels, reappear in many of the game's levels. However, the player has 30 seconds to get all the Bananas, Banana Bunches, Banana Coins and Extra Life Balloons. If they successfully collect all of these items, the clock stops, and a Puzzle Piece appears for them to collect.