Bulball

This is a new enemy in Pikmin: Bulborb Attack!!!!!. This is the oddest of all Grub-dogs, because they don't look like bulborbs. Instead, they are floating round creatures with the texture of a Red Bulborb back. In groups of 80, there only attack is forming the shape of a bulborb to eat pikmin.

Olimar's Notes
Odd creatures are known to hide air sacs in there internal organs, with soft frail body structures, no corpse is left to study.

Louie's Notes
There is no way to eat it.