In Hyper Duel the player controls one of three "Buster Gears” pilots: Keith Spader, Lisa Rowling, or Dr. B. Lloyd, and must destroy alien forces.
Buster Gears look like normal spaceships but have two modes - spaceship and robot - with different fire modes. The ships can also acquire additional helper units by collecting either the T or G items. The weapon can be upgraded by collecting P items.