Skeleton Bird

A Flying Ghost is an enemy in the game Wario Land 4. They only appear in the Crescent Moon Village and Hotel Horror levels of the Sapphire Passage.

These ghosts are flying skeleton-like monsters that can't be normally destroyed by Wario. Flying Ghosts wear a green hood and a red bandanna and have one flapping wing. They attack by spitting green clumps of goo, which does not actually hurt Wario, but turns him into his zombie form. While Wario is a zombie, he can attack a Flying Ghost; after hitting it once, it will crumble into a head which can be defeated by either Zombie Wario or his normal self.

In the ending cutscene, a flying Ghost with four tails appears with two Ax Ghosts.