Halloween Boo Ghost Super Mario Bros. T-Shirt

Boos are ghost enemies that were introduced in Super Mario Bros. 3. The Boos cover themselves up when a player is facing them, then the Boos sneak up on a player from behind when they are facing away. The Boos are considered one of the best enemies in the Mario series, and everyone will instantly know you are a fan when you wear this Halloween Boo Ghost Super Mario Bros. T-Shirt!