WASD to move Click to shoot Space to fly Click potion to heal unless you're yharim or somethin', I don't suggest trying to no-hit this.
Credit to re-logic for terraria and fabsol for calamity. Also stariroy for background and ground. The Bumblebirb, created by Yharim in a failed experiment to engineer an army of lesser Yharon clones, was released into the Terraria Jungle to wander aimlessly and attack those strong enough to pose a threat to Yharim himself. They have the uncanny ability to replicate themselves in order to mass-produce more tiny Bumblebirbs that will eventually grow into larger birbs. The only thing preventing the birbs from overpopulating the entire Jungle is their engineered "replication limit" protocol. This protocol shuts down the birb's replication when there are a large amount of other birbs present near them, preventing the birbs from replicating with themselves further.