SHMUP is a vertically-scrolling shooter with plenty of enemies to shoot and bullets to dodge. Pilot your ship through the perils of space to eliminate the galactic menaces that threaten the universe. Collect the green crystals that some destroyed enemies leave behind. These crystals act as a currency, which can be used to purchase parts for your ship. In every world, there is a docking bay where you can purchase, sell and equip parts.