Pencil Hoof

And here is the final battle with 02, sometimes called 0 Squared.

http://www.youtube.com/watch?v=Nez-T5N57Og

The actual battle doesn't begin until 0:48. Also, make sure to turn up your headphones, cause 02 is known for having one of the best final boss themes ever.

@NASCARFAN

To be fair, the Kirby series has always had horrific final bosses. I mean, you've got Demonic entities, insane jesters, the God of Death, etc. Plus, the series takes place after Earth's apocalypse, so... yeah.

Wait, wait WHAT?! The Apocalypse, huh?! I thought Pop Star was a distant place from Earth?

Oh, and 02, wasn't he from Kirby 64?