Nupperibo are shambling, ambulatory meat sacks - vaguely humanoid blobs of pus and flesh with a putrid yellow-green pallor - with the horrified faces of the accursed damned. Damned souls raised from the Styx to do the bidding of the princes of Hell, nuperribo are largely mindless and attack in mobs with found weapons or slashes from their rotted claws. They stand five feet tall and weigh about 100 pounds.