Your spaceshift can't escape from the planet's gravity, ¡Slide and dodge as many aliens as you can, don't let them take you! shoot them will only make more and more aliens appear, ¡They are everywhere! Also, something is wrong with mars, it's very small, maybe bullets can reach far away, bullets even may cross the planet or escape the orbit... Share your score with your friends and challenge them to see who is the best.