An Axe Flapper is a bat-like creature with a thin neck and a pear-shaped body. Its body is navy blue while its short legs and tail, as well as its head, are all blue. Its head is shaped like a hatchet or axe blade. Two large, tan wings with blue edges sprout from the sides of the Axe Flapper's head. It does not have arms. Its red eyes are set in a sorrowful expression and the Unversed insignia is displayed on the front of its torso.
In Kingdom Hearts Birth by Sleep Final Mix, Axe Flapper receives a palette swap which gives it a light-pink body.
An Axe Flapper will usually keep its distance from players and attack them with blasts of Aero from their wings. If knocked down, it recovers with a sudden spin which damages players.
- Wind Cutter: Shoots players with razor sharp Aero blasts from its wings.
- Rising Slash: If knocked down, it recovers with a sudden, short-ranged spin, damaging the player.