This Boo plush puts one of gaming"s most well-known Super Mario enemies in soft, cuddly form. The plush is made using the highest grade fabrics and due to the limited availability of Boo merchandise makes him all the more collectable. Officially licensed. Boo is a common ghost enemy in the Super Mario series first appearing in Super Mario Bros 3 in 1988. He is a shy enemy who doesn"t like to be looked at. His regular appearances in the series as well as his unique look has made him a firm favourite with fans of the Super Mario Universe. Mario has been starring in games since 1981 and over 30 years later is still as fresh and exciting as ever. He has appeared in over 200 titles and is the best-selling video game star of all time, notching over 210 million unit sales to date. His popularity has spread via numerous cross-over projects including TV shows, comics and even films and lead to Mario becoming a cultural icon.