Tappy Sky has similar gameplay to the popular Flappy Bird but also features several twists. Instead of a bird, you control an airplaneÖan airplane that has guns! Your plane fires its weapon automatically; you must simply control the planeís flight. Destroy aliens and monsters, and also the difficult final boss. Each level has a series of power-ups to help you defeat your enemies faster. Furthermore, you can collect keys to unlock better pilots and equipment.