Vampire Bats are enemies in the game Wario Land 4. Vampire Bats can't be defeated be Wario. The Vampire Bats are the only creatures in Wario Land 4 that can turn Wario in to Vampire Wario. Vampire Bats appear in only two levels in the Sapphire Passage, these levels are Crescent Moon Village and Hotel Horror.While Vampire Bats are enemies they really aren't aggressive towards Wario. The Vampire Bats just try and fly around minding there own business. Vampire Bats are not big fans of light and try to avoid it the best they can.