Omega Factor is a beat 'em up game starring Astro Boy, the main character of the Astro Boy franchise. Astro attacks enemies using high-powered punches and kicks, which can also knock enemies into other ones and destroy them. Using attack moves slowly fills a gauge at the top of the screen. Once the gauge is filled, Astro is able to perform a special attack; these are required in some situations. Astro is also able to fly using rocket power, which is also sometimes necessary. (wikipedia.org)