Banzai Bill

A Banzai Bill is an enemy in the Mario Series. He is a gigantic version of a Bullet Bill, and will shoot straight toward you. His first game appearance was Super Mario World, where the only way to kill it was to either jump on it, or slide under a whole. His next appearance was in Super Princess Peach, then New Super Mario Bros..

In New Super Mario Bros., he would shoot out of a cannon, you would then have to either jump on it's head, or if you had a mega mushroom, just run into it.