Fact 1
Marooned on the ice planet Krybor, the player uses a laser cannon to destroy legions of demons that attack from above. Visually, the demons appear in waves similar to other space-themed shooters, but individually combine from the sides of the screen to the area above the player's cannon.
Fact 2
Each wave introduces new weapons with which the demons attack, such as long streaming lasers and laser clusters.
Fact 3
A shooter game, it was released in 1982.
is an arcade video game developed by Tomohiro Nishikado and released in 1978
is a fixed shooter video game produced by Imagic in July 1982, for the Atari 2600 video game console
Asteroids is a multi-directional shooter arcade video game released in November 1979 by Atari, Inc. and designed by Lyle Rains and Ed Logg
is an arcade game developed by Namco and first released in Japan on May 22, 1980
An Atari 2600 game developed by Activision.
A shooter game developed by Activision for the Atari.
An Activision video game made for the atari.
is an arcade game released by Nintendo in 1981
A 1981 arcade game created by Atari.