Assault General: Can teleport and are slightly tougher.
Zombie Pig Cop: Re-animated piggy's which fire dual pistols. Found in Gates Motel.
CyberKeef: The final boss - he's big, green & moves very quickly. Found in Ministry of Fear. The CyberKeef is a Gaint Cyborg/Robot that somewhat resembles Duke Nukem The CyberKeef resides in a disco club behind the curtains on the dance floor, the player can also fight with the CyberKeef outside the disco which will give the player an advantage and an easier fight with the CyberKeef by having more cover.