Robot Laser Blast

Inthe year of 2081, some strange artificial creatures started to take over our beautiful planet. But they weren't here to play nice, they were here for one and one reason only: to turn our little, blue planet into another colony for their galactic empire. We had to strike back but technically we were much more inferior to them, unable to go on intergalactic war, so the human alliance designed a new type of weapon that could blast enemy ships straight out of the sky, called the robot 'Savior' and equipped it with some hardly controllable energy and a state-of-art rail gun that could cut straight through strange alloys used by the enemies. Lets take back our planet from those obnoxious aliens! Don't give up! Destroy every single spaceship! Have fun with laser Blast!