Cat Banzai Bill
Cat Banzai Bills are a sub-species of Banzai Bills, powered-up by a Super Bell, appearing in Super Mario 3D World.
Like normal Banzai Bills, Cat Banzai Bills are fired from Banzai Bill Blasters. However, unlike normal Banzai Bills, they will lock onto and follow the player, being very similar to Missile Banzai Bills in this sense. Also unlike normal Banzai Bills, Cat Banzai Bills are colored white on their lower half, instead of being completely black. They will sometimes drop a Super Bell when defeated. They make their only appearance in The Bullet Bill Express.