Official Nintendo Mario Plush Series Stuffed Toy - 5" Bullet Bill / Killer S (Japanese Import)
Bullet Bills, known as Killers in Japan, are black, missile-like enemies, commonly depicted as having small arms and fanged frowns on their faces, they first appeared in Super Mario Bros. They are usually fired by cannons known as Bill Blasters, although they are sometimes fired from other sources, such as Snifits and generic cannons.