This is nice and addictive shooting game. You can play in two modes. Your aim is to control your UFO, shoot as many enemies as possible, and stay alive. If you are playing in "Campaign Mode" then you have to kill certain amount of enemies in every level to progress into next stage. In "Hiscore Mode" the longer you survive, the more points you will get. Use "A", "S", "D", "W" KEYS to control your UFO. Use YOUR MOUSE to aim and click LEFT MOUSE BUTTON to fire. Have fun!