Arcade game:Gravitar

In the 1982 Atari game Gravitar, players not only fight outer space enemies but gravity as well. Gravitar was one of the few games Atari created using their color X-Y generator. In the worn-out genre of outer space shooting games, the full-color beauty of Gravitar stood out. Gravitar was ported to the Atari 2600, and is now available on Microsoft's Game Room for Xbox 360 and Windows PCs.