Ache

The Ache (エーク, Eiku) are blue or purple bats related to the Keese in Adventure of Link; although more resilient in combat, harder to destroy, and that have magical abilities.

They can disguise themselves in the villages of Hyrule as ordinary Hylians, but are most often found in caves and trees. They can be killed with bladed weapons such as a sword.

The Acheman is a close relative to the Ache.