The Ancient One

The Ancient One is the final boss of Blood II: The Chosen, living in Reality Beta. Little is known about it, besides that it is the apparent driving force behind behind the intrusion of our reality by beasts like the Behemoth and Bone Leech. It is never referred to in dialogue, but Ishmael mentions that there is an "ancient reality forcing its way through the rifts" and that it is "neither good nor evil, it merely is. But it will devour us all". The loading interstitials don't make a mention of it until C4L1: Beyond the Rift.

The Ancient One appears as a giant amorphous blob resembling a squid or sea urchin, resting in a pool of red liquid (most likely blood). Tentacles rise from its body that can whip the player if he gets too close. The Ancient One does not speak face-to-face, but does communicate using representative bodies in the forms of the Undead Chosen in the level previous.

Its immobility makes it fairly easy to kill, and lackluster as an end boss. It can fire a very fast explosive blast and lasers from its eye.

There are various power-ups and ammo scattered about, making the battle even easier, although most of the arena is composed of scattered rocks. The Vulcan Cannon and Napalm Launcher make excellent weapons in this battle.

The Ancient One is similar in style to Cothenial from the sister game of Blood II, Shogo: Mobile Armour Division.