Alien Syndrome is a sci-fi themed action game that was released for the Master System in 1988. The game is set aboard a series of spaceships overrun with alien life forms. Players take on the role of two soldiers, Ricky and Mary, as they attempt to rescue their abducted crewmates and confront the alien threat. This top-down shooter requires players to navigate through maze-like levels, battling various extraterrestrial enemies and bosses, while collecting upgraded weapons and power-ups. Its mix of action, strategy, and survival elements makes it a memorable fixture amongst classic 8-bit genre titles.