Enemy airships are approaching the command base! You must fly your plane five squadron into battle to protect it. Piu-scan is an arcade transform. You control a squad of five ships at the bottom of the screen, your goal is to earn as many points as possible by destroying the various enemies that will attack. If one of your squadron's ships is under enemy fire, it will be destroyed. The game ends when all five ships have been destroyed. As you progress through the game, from time to time you will have the opportunity to replenish the missing ships. Each time you complete a round by shooting ten enemies, an additional ship will float across the screen. You can add this ship to your squadron by trapping it in an empty spot in the formation. Each time you pass four rounds, the game will advance to the next level with increased difficulty!