Poder Oscuro, El (S) (1988) - Amstrad CPC - RPG, Fantasy.

A mysterious and terrible 'Dark Power' is the leading force of the aliens that have invaded the planet Siros. You've called for help but, by the time reinforcements arrive, it'll be too late. Your task is to activate a huge power generator to destroy the power that literally erases the screens of the game as you play. To do this you control a huge robot, but you can also leave the robot in a spacecraft when necessary and even fight your way on foot in very narrow places.