Giant Bat

The Giant Bat is a Hardmode Bat enemy that spawns in the cavern layer. It can inflict the Confused debuff, causing the left and right game controls to reverse.

Trivia

 * The Giant Bat's ability to "confuse" players may be a reference to the Pokemon franchise, in which the Zubat is notorious for confusing the players' Pokemon. Some compare it to Golbat, the evolved form of Zubat, due to its size.