Dimension Mirror

The Dimension Mirror is a world with no map. If collect all of the Dimension Mirror pieces (which contians beating the bosses), you will enter the Dimension Mirror. It started when four Kirbys decieded to challenge Meta Knight (which was really a fake Meta Knight) with a big "!". If you defeat Dark Meta Knight, you'll go face-to-face with Dark Mind. If you lose all of your lives, you'll go back to where you started (like some other stages).