They came from the Skies

In the 1960s an aggressive alien species attempts to invade Planet Earth. It is your duty to prevent the annihilation of the human race. They Came From the Skies is an arcade 3D shoot-'em-up where the player can choose between two different look alike aircrafts of that decade - a jet fighter and a bomber. In the following 20 missions the main task is to keep control of the sky by fighting flying ...