Subterrania (Sega Genesis)

Aliens have invaded a vital subterranean mining colony. Fly a prototype fighter through impossible caverns to rescue miners and blast the aliens into the darkest pits of space! Wanted: light-speed reflexes, total concentration and nerves of steel. Fight to stay airborne as gravity sucks your ship towards the surface. Awesome futuristic graphics! Wreak mass carnage against incredible alien monsters and dodge the metal-melting blasts of enemy lasers! Nab strategically-placed gear to transform your fighter into a submersible for terrifying subaquatic combat!