Train your shooting skills. When you see a target appearing in the air try to hit it with your mouse as fast as possible - it will be up only for short time. And do not forget to reload your weapon when asked to do so.

You can move along the bottom line with mouse and shoot up at the advancing aliens with clicking the left mouse button. They will shoot back, so you should be prepared to dodge. Try to keep them at bay and go to the next level.

You stay on the guard of Galaxy trade ways. Your task is to destroy all dangerous asteroids on your way. You have missiles of different colors. Use them for asteroids of the same color. If you shoot the asteroid with the missile of another color it simply changes its trajectory and your missile...