Ys I and II ChroniclesEdit
The creature from the mines who annihilated the village of Rastin in a single night. Divides itself into innumerable bats, swarming its prey without mercy. Only vulnerable when it re-forms.
A great, winged demon confronted in the Wailing Blue tier. Capable of splitting itself into innumerable smaller creatures which can band together to inflict severe damage.
Vagullion in Ys I Eternal