Adramelech

Adramelech is gigantic goat sacrificed as the embodiment of tortured souls, and it's trapped within the bell tower's castle wall. Those many Tortured Souls protect its huge, vulnerable head by forming into purple globs that crowd around each other, floating up and down--and they keep forming one after another.

Attack
Adremelch itself will attack in two ways: It'll blast huge blue flames, about eight in a row, each in the exact direction that you stand during its release; or it'll conjure souls in the form of skull heads to swoopingly chase you from one side of the room to the other--if you don't duck under them at first.'''

Appears

 * Castlevania: Circle of the Moon