This Super Mario Bros. t-shirt features a Boo ghost, the character that would cover itself up when Mario looked at him, but then chase Mario when he turned away.
Boos were introduced in Super Mario Bros. 3. In their first appearance, they appeared as fortress enemies, and since then have featured as a playable character in numerous Mario titles.
For any fan of the popular ghost character, this Boo Super Mario Bros. T-Shirt is a must have!
