Set deep above the Earth you must take control of an orbiting satellite and defend the planet from attacking aliens that shoot weapons wildly to kill the human inhabitants. Split between defensive and offensive modes you must either stop missiles landing on Earth or hunt down elin spacecraft and destroy them with your amazingly powerful weapons. Control the path of the satellite and also the weapons as you fight to protect your way of life.

For those that loved that amazingly cool Sega Master System title and you'd love to take a shot at other awesome games from this great genre then why not take a shot at other cool games, such as Dragon Spirit: The New Legend, G-Darius and the badass Alien Resurrection!