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Hyper Duel is a 2D side-scrolling space shooter. 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 from other games but have two modes - spaceship and robot - with different fire modes. The ships can also acquire additional helper units (similar to option from Gradius but more independent) by collecting either the T or G items. The weapon can be upgraded by collecting P items. There are eight stages.