The monster cereals are a line of breakfast cereals produced by General Mills Corporation in North America. The line was introduced in 1971 and, at various times, has included six brands, each featuring a cartoon version of a classic movie monster: Count Chocula, Franken Berry, and Boo Berry (all produced seasonally from September 1 to October 31), as well as Frute Brute and Yummy Mummy (both are discontinued, except for limited productions) with a sixth character Carmella Creeper introduced in 2023.