Alien Syndrome

Alien Syndrome (エイリアンシンドローム, Eirian Shindorōmu) is a 1987 run and gun video game developed and published by Sega for arcades. The game utilizes a side-scrolling feature that allows the player to take control of either a male (Ricky) or female (Mary) soldier whilst hunting aliens and saving hostages before they run out of time. Alien Syndrome was released to commercial success and positive reviews, with praise towards its gameplay, character designs, sound design and horror themes. It was ported to various home computers and consoles, including Sega's own Master System, becoming one of the best-selling titles for that console.