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The earth-based "Grayzon" computer defense system has been 'net-jacked'. Mankind's future in space is in your hands! This highly modified SA-77 "Silpheed" tactical fighter spacecraft is up to the challenge... are you? The best space-shooter ever, 11 fast, tough, action-filled battle stages. Amazingly detailed polygon graphics and CD quality music and sound. Left and right main weapons, plus choice of optional weapons systems: Graviton Bomb, EM Defense System, Photon Torpedo or Anti-Matter Bomb.