Buzzar

 is a boss in Paper Mario.

Although it may seem otherwise, Buzzar is actually optional. Upon reaching him, he will ask you if you are "Mario". Mario can answer this question in one of three ways: "Luigi", "Mario", or "Peach". If he chooses "Luigi", then Buzzar will believe him and fly off. Everytime Mario walks through this area, Buzzar will swoop down and ask this question until Buzzar is defeated. It is shown that Buzzar might be a female, seeing as how she is sitting over eggs in her nest.