Space killers (Retro edition)

Have fun with the new game Space Killers, which is available on the App Store (Retro edition). The battle began when extraterrestrials launched an attack on the solar system. Your aim is to combat the aliens with your spaceship in order to destroy them. Make use of the tremendous weaponry you have at your disposal to defend the solar system from an alien invasion. Make every effort to get as many points as you can and place your name on the leaderboard of the best.