Unlockable stage

An unlockable stage is a stage that is not available at the start of the game (unlike a starter stage), but must be unlocked. Just like an unlockable character, is required to accomplish a particular in-game feat and once complete, a message will tell him the stage is unlocked.

Super Smash Flash 2
'''Do not place stages here until they are officially confirmed. Please provide a link to the confirmation onto the talk page.'''