Vire
The Legend of Zelda
In The Legend of Zelda, Vire was a foe only encountered in labyrinths. When struck, this bouncing, bat-like demon would split into two Keese.
Oracle Series
Appearing in both Game Boy Color titles: Oracle of Seasons and Oracle of Ages, this red bat played the role of Onox's (Oracle of Seasons) and Veran's (Oracle of Ages) henchman. Vire also appears at various points during linked games to cause various trouble.
In both games he is the miniboss in the sixth dungeon. He will fly around evading you and firing energy balls at you. After hitting him several times he will split into two smaller bats and they will try to tackle you, one swipe of your sword takes both of those bats down.