Bullet Bills are bullet-like projectiles with menacing looks and arms that appear in the Mario series. They are shot out of Bill Blasters and are usually under Bowser's control, acting as enemies of Mario since their debut in Super Mario Bros Ever since Super Mario 64, Bullet Bills have had the ability to home in on Mario, also like a missile. These enemies can be found throughout many of the classic Mario games and in newer games, where they have increasingly been items, mostly in the Mario Kart series. Other games depict them as sentient being with emotions and some talk in the cartoons.