checked-no =>Boss Battle Mode: Complete the game with a 100% ranking and you'll unlock Boss Rush in the minigames menu. =>Galaxia Sword: Beat the game once and you'll be able to play the game with Meta Knight's Galaxia sword. =>Power Center: After activating all of the purple switches in the game, the Power Center will appear in the game's main hub room. The Power Center allows you to access any power in the game.