Mad Piano

The Mad Piano is an average-looking piano appeared Super Mario 64 and Super Mario 64 DS. However, when Mario goes near the instrument, it will open and close its lid, revealing sharp teeth. The Mad Piano will then attack the trespasser until the hero has to get out of the room where the piano lies. The Mad Piano only appears in Big Boo's Haunt. A Red Coin is found beneath it when Mario has the mission to pick up the 8 Red Coins hidden in the level.