EXCALIBUR 402-1-CS Classic Space Invaders. The original space adventure game is back. Move your laser gun left and right as waves of aliens descend, faster and faster. Blast them apart and then knock out their mother ship for bonus points. Its up to you to save the galaxy. The classic arcade game now fits easily in your hands. Turn space-age battle sound effects on or off. Pause button lets you take a break from the galactic action. Space Invaders are coming to destroy the Earth. Blast into the past with this unique mini-arcade game complete with its own color screen, new from Excalibur Electronics.