Giant Bat/Enemy Data

Castlevania
Official description: Spreading his wings and moving irregularly, he flies close to you and then retreats. An Axe or Boomerang is more effective than hand-to-hand combat.

Castlevania: The Adventure
Official description: Your moment of attack is when he is in the form of a bat. From the middle lower platform, wait until the bat moves to the left, then attack.