A
bullet bill is a powerful bullet about the same size as mario when he is little, used by
bowser to stop mario from
saving the princess and rooting her.
Mario Jumps on top of these to kill them, but constantly shoot out of a cannon in attempt stop him.
One of the greatest but forgotten enemies of the Super Mario Bros. Games.
Bowser shot a bullet bill at
mario just before he finished the level, the guy playing was very annoyed