General Mills' monster cereals are inspired by classic horror film characters. The third monster cereal introduced was Boo Berry, the first blueberry-flavored cereal. The Boo Berry mascot character is a ghost that has a voice and appearance that are consciously reminiscent of the famed actor Peter Lorre. Everyone will immediately know you are a fan of the delicious cereal when you wear this Ghost Mascot Boo Berry T-Shirt!