Guided Bullet Bill

Guided Bullet Bills are special Purple Bullet Bills that appear in Super Mario Sunshine. They only appear during the final battle, where they are fired by Bowser Jr. Guided Bullet Bills act in an identical manner to Purple Bullet Bills in that they will home in on Mario. Additionally, they come in black and blue varieties, the latter of which will let out a 1-Up Mushroom or a Water Bottle if stomped on.