Skuller appears to be a human skull with tiny yellow pupils.
Skuller serves as the Extra Game equivalent of Mumbies. Just like Mumbies, Skuller cannot be inhaled and moves in a set pattern. It is faster than its counterpart and inflicts two points of damage when it makes contact with Kirby, making it a threat. When Skuller moves around the screen, its eyes and mouth open and close.
- Skuller is likely a reference to the enemy Skull from The Adventures of Lolo.