Aim, shoot and destroy as you fight against the evil attackers from outer space who attempt to kidnap the innocent citizens for cruel experiments! Your goal in this game is to destroy the intruders and do not let anyone be caught. When the game starts, multiple alien spaceships will start kidnapping the citizens. Move your mouse around to control the shooting direction of the cannon at the bottom of the screen, then click to shoot the crafts. If you destroy the crafts which carry special items, you will be able to use the powers of the items, for example, a craft with a shield will create a shelter which prevents the aliens from kidnapping the citizens, and a bright yellow craft will give you more powerful bullets, etc. As you advance in the game the aliens will move at a faster pace, and if a citizen is caught and the kidnapper leaves the screen, you lose the game. Can you eliminate the hordes of intruders and save the day?