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 first 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 over 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.