Game: Altered Beast (1988)

He had cheesy threats, ("Welcome to your doom,") a weight problem and no hair. But this demon god brought an army, lightning powers and shape-shifting madness to the fight. When you leveled up to your enhanced form, Neff would meet your metamorphosis with his own. He would transform into a head-tossing giant, a plant beast and a large snail/lizard creature. Neff's sheer presence and ability made this battle one of the most challenging and exciting, especially for 1988.