Be the first player to capture three monsters, then return to Earth. The game characters and artwork are based on the Battle of the Planets (Gatchaman) cartoon series from the same time period. In the television market where I lived as a child (Western Massachusetts, Northern Connecticut, USA), this show was known as G-Force (a re-worked series, which put back the missing content from Gatchaman, but included a dreadful back-beat in every scene).