Phanto

Phantos are enemies in Super Mario Bros. 2 and Super Mario Advance. They appear in a room, guarding the key. They are harmless to players until the player takes the key. One of the Phantos will chase the player and try to ram into them. If they touch the player, they harm the player. Phantos have an evil grin and are gold in color. Phantos stop chasing the player if he drops the key, or unlocks the door. Phantos can't be defeated unless it attacks you and you have a Starman's effect.