An alien ship enters our galaxy. Undetected by mankind, the sinister ship starts releasing giant spheres designed to destroy our solar system. One by one, the outer planets fall to the evil spheres. Reports from the frontiers are dire — the ships are moving closer and closer to Earth! Meanwhile, back on Earth, a team of military engineers are busy with a secret project that may be the planets only hope. Hes a genetically modified soldier with supernatural physical strength. Only his discs, made of a special alloy that can strike with amazing force, can defeat the alien spheres. The fate of our planet depends on it. - 6 planets to defend! - Over 120 levels! - Awesome futuristic art! - Check out Neptune, Saturn, and more!