Gravitar

      Gravitar is a shoot 'em up arcade game released by Atari. Travel to three different solar systems in this revolutionary game. To move from one solar system to the next, you must either visit all the planets and destroy every enemy bunker or activate the reactor at the core of the alien reactor base and escape before it explodes. When you complete your mission in the three solar systems of one galaxy, you are automatically transported to another galaxy, where your rescue mission will continue. The game ends when you run out of fuel or lose all your spaceships.