Welcome to UFO battle in the sky! With Cosmo.sx, you will have the chance to join a fascinating adventure in the air. Are you ready to challenge yourself? Use all your fighting skills to shoot down other UFOs in the battle and put your name on the Leaderboard of Cosmo.sx now! Especially, donít forget to collect as many items as possible and upgrade your power in the game. So, move quickly, shoot correctly until the enemy run out of energy and avoid being destroyed by their bullets. Donít hesitate anymore!