A surprisingly good beat-em-up, Omega Factor follows the broad strokes of the plotline from the Astro Boy anime, a show about a young boy who dies and is then rebuilt as Astro, a nuclear-powered superhero robot. The spritework is pleasingly colourful, and the variety of challenges is genuinely fun! Each level follows a different arc from the show, and as you progress you grow Astro's Omega Factor, gaining upgrade points for his abilities. There's also a stunning twist halfway through the narrative that completely hit me by surprise, and is absolutely worth playing just to see it play out.