Castlevania Harmony of Dissonance - Boss Legion (saint)

As you whip the outer shell to destroy it, smaller versions of Legion will form from what is remaining. These can damage you severely, so destroy them quickly. Destroy all outer layers of Legion to expose the inner core, which you should attack. The core has three tentacles that will shoot blue energy beams at you. Avoid these at all costs. Whip the core/eyeball and Legion will be destroyed eventually