Bats

Bats are common flying enemies. They follow the Bat AI, randomly flying around and bumping into things while trying to make contact with the player. In, all types except for the Slimer have a chance to inflict the Feral Bite debuff on players.

Pre-Hardmode
Spore Bat   16/  32  140  176     13/ 26  92   116

Tips

 * Bats are small, fast and their erratic behavior will often annoy and irritate players. They can be a serious pain to newcomers without means of protecting against knockback, such as the Cobalt Shield, because players could be knocked off ledges into lethal falls, or worse, a group of enemies.
 * Hellbats are known to be especially irritating, due to the fact that if a player is standing near lava (which is extremely common in the Underworld), the Hellbat can easily knock them into the lava if they do not have any knockback-resistant accessories equipped.
 * A normal tactic would be to avoid them; such as forcing them to fly into walls or alcoves to keep them away.
 * If armed with a weapon with decent knockback, it would be sufficient to slay them close-up, because a swing is often completed before the bat returns.
 * One might notice early that broadswords are extremely effective with practice.

History
Fledermäuse Chauve-souris 박쥐 Bat Bat Летучая мышь 蝙蝠