You command an automated defense station armed with an array of laser batteries, tasked with protecting against waves of cosmic threats descending from above. Armed with unlimited ammunition, your reflexes and aim determine your survival as asteroids, mines, guided ordnance, and hostile alien craft pour down in ever-intensifying barrages. Each destroyed threat earns points, challenging you to build impressive scores while adapting to the shifting patterns of incoming danger. The only escape from the onslaught is a hyperspace jump, your last resort when the assault becomes too overwhelming to manage through firepower alone.