In Astro Boy's first game for the Game Boy Advance, Astro needs to both stymie the bad guys and connect with the souls of people he meets. Connecting with souls add to his "Omega Factor," which represents human traits. Every time Astro Boy connects with a person, he becomes more human-like and gets to power up one of his six super powers. The game features characters from the cartoon series. You can use all six of Astro's superpowers and also power up Astro's abilities, including a particular "rear cannon".