Your island has been invaded by aliens during the night, take your shotgun, and kick them out!
Alien Blitz is a top-down 3d arcade-shooter with loads of weapons, maps and monsters. You play a soldier resting on his native island, but it is quickly overrun by monsters from outer space and no outside help is available. You put on your armor, take your shotgun and go to find out what happened at the peril of your life.
Source: The Developer Website.