"Friendly" signals from Earth sent into deep space were received by sentient beings!!! True, they were not understood as they should, and the invasion of the earth began!
From that moment on, the Captain of the Protector patrols the surface of the earth, protecting people from kidnapping attempts. The military scanner shows the exact situation around the ship, making it possible to monitor the area and plan the destruction of enemy invaders. Kidnapped people mutate, replenishing the ranks of enemies, so don't let that happen!
Based on an arcade game created by Williams Electronics in 1980. Graphically, of course, the game loses a lot to all other known console versions. Is that the version for Atari 2600 can be compared in a schematic performance Defender.
Was also on Apple II, Atari 8-bit, Atari 2600, Atari 5200, Commodore 64, ColecoVision, PC, TI-99/4A, VIC-20.