Bat (バット Batto) is a common weak enemy present in all Boktai games. They will always be found hanging on a wall and if the player gets too close, they will flaps around trying to attack him with bites. No matter if the player hidden himself, they will constantly follow him in the room until it is defeated.
- Bats in Boktai 1 have red eyes, while in the next games they have purples.
- In the immortal dungeons Fog Castle and Bloodrust Mansion, if the player enters five minutes before the sunset, a couple of bats will fly out during the cutscene.
- Vampire Bat: A variety introduced in Boktai 2. They are just like a regular bat, but stronger and has the ability to suck HP from the player. They have Dark property.
Bats are flying mammals in the order Chiroptera. The forelimbs of bats are webbed and developed as wings, making them the only mammals naturally capable of true and sustained flight. Vampire bat is the name of a species of bats whose food source is blood. There are three species of vampire bats, and all three are native to the Americas. Bats are often used in fiction stories related to vampires, in most cases the vampire being able to transform into a bat.