Biggaboo is a recurring boss enemy from Pac-Pix. He is one of many ghosts trapped inside various books and causing trouble for Pac-Man. He changes his methods for each battle: the first battle encounter has Biggaboo growing large each time a Pac-Man drawing eats him; the second battle encounter has Biggaboo flying in the air; the third battle encounter has Biggaboo wearing puzzle pieces as armor for invincibility. He can easily be defeated the first time by drawing larger Pac-Mans to eat him with, the second time by using arrows when he's in the air, and the third time by throwing bombs.
Biggaboo is a large, purple ghost with a green mohawk. He has the ability to grow his body to whatever size he desires.