i did the first part of the fight ONLY using the knife, no damage whatsoever, the boss can't hit you if you're under it and in five minutes i took him down
then the second form, with no fuckin ammo available, i have like a couple of granades, few ammos for the gun and the shotgun and that's it, it took like 40 minutes to reach the third regeneration then i got killed like an idiot, i think i'll try again tonight but with a human partner or i'll just use Piers so that i won't need to worry about ammos
And FUCK, i liked Piers, i'm expecting drama in the ending