Heiankyo Alien

Heiankyo Alien (平安京エイリアン, Heian-kyō Eirian) is a video game created by the University of Tokyo's Theoretical Science Group (TSG) in 1979. The game was originally developed and released as a personal computer game in 1979, and was then published by Denki Onkyō Corporation (電気音響株式会社, Denki Onkyō Kabushiki Gaisha) as an arcade game in May 1980. The game has been ported to several other gaming systems since its original release.