Tah-Um AKA Notorious Mental is the evil incarnation of the ancient immortals and for several eons has roamed the galaxy, destroying intergalactic communtites as he sees fit. He has set forth to wipe out humanity with his monstrous minions just for sheer fun, but defending them is the unstoppable Sam Stone. Mental's physical appearance is never seen ingame, although his voice is heard. He is also never ultimately defeated by Sam, although his generals and minions are easily killed by the killing machine who thwarts Mental's evil plans time after time.

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