In My Hero: Astronaut, players take on the role of a new recruit in the United States of West on a quest to lead their team to victory by conquering space before their rivals do. On an expedition to Mars, players will pilot a space rover, space shuttle, and lunar lander as they blast off through more than 40 different missions. Activities include landing on a space station, repairing satellites, destroying meteors on a collision course with Earth, and much more. For every mission successfully completed, players also earn medals and receive special gameplay bonuses.