A free program for Android, by OK Games.

In the future, mankind will be forced to live on earth, under a cruel and harsh sky, and will have to fight to survive. The Earth has been invaded by aliens, and the only hope to save mankind is the galaxy. You are the captain of a powerful spaceship and the last hope of the galaxy. Your mission is to protect the galaxy from the invasion. In order to complete your mission, you must defeat all the enemies and bosses.

You will be faced with lots of enemies and bosses in the game. The enemies will be on your way, and you will have to shoot them down to protect the galaxy. The bosses will be the most dangerous enemies in the game. You will have to fight against them, and you will have to upgrade your spaceship to defeat them.