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Invasion is bullet-hell shoot 'em up, a direct descendant of Galaxian video game with new ideas and technical implementation. If you like a non-stop shooting and full screen explosions - this is your game. Take the tank and destroy the alien ships or aliens will destroy you. You can choose different tanks, and use tactical nukes to fight the enemies. Machine, plasma and sector guns, lasers, rockets, cannons and bombs will help you. Also you can upgrade your tank and weapons. Destroy the aliens!