Boss: Albinoid
This little pesky critter is a tough enemy, though you don't get hit by the albinoid the electrical shocks do that for it. The albinoid is protecting the Eagle Plate that holds the Halberd, equip your shotgun and walk to the far right, auto-aim at the albinoid and blast it until it cannot be blasted any further, you may need to reload a few times. Once the albinoid is dead walk over to the Eagle Plate and pick it up. Open up your menu and combine the Eagle Plate with the Clement Mixture E to create the Halberd!