Your are in the little spaceship. You are from Mars. You want to land on Earth. However, there's a catch. First, you must destroy the city so as to have a flat space to land. So, how do you do that? You must drop missiles on the buildings using your space bar. Once you've destroyed every building, you get to go on to the next level and destroy another city, in its entirety, so that you can land. Are you ready to land on Earth? Then let's get on with Mission Mars!