The Battle Flappers, like the Flappers, look similar to the Egg Pawn, possessing a round torso, black undercarriage, and dome-shaped head that the Egg Pawns have. However, Battle Flappers have bat-like wings instead of arms, and two turbines on their backs. Additionally, while they have the Egg Pawns' pointy nose and panel-based mouth, they have black sunglasses instead of eyes. In terms of color scheme, the Battle Flappers are purple with yellow and light purple details.
In gameplay in Night Carnival, Battle Flappers are stationary or patrol their local area, but when they detect the playable character, they fly towards them. Battle Flappers possess no form of attack, but they can damage a careless player in case they run into one. Other than that, they are easily destroyed with either the Spin Jump/Axel Jump or the Super Boost/Fire Boost. Also, upon their destruction, they release an Animal.
In gameplay in the Special Stages, Battle Flappers are encountered along the stage's chute, where they will home in on Sonic three times in a row. They can be defeated by tapping them three times with the stylus, which causes Soonic to Homing Attack them. However, if they are not defeated within a specific time frame, they will fly away. Also, upon their destruction, they give Sonic five Rings.