In Ultimate Galactic Battle the Earth is menaced by an alien invasion. You are a member of a crew designated by the United Nations to go into space and eliminate it. The success of your mission is vital for the equilibrium of the universe. It consists of four different campaigns where you have to defeat different races of rebel aliens. Control your ship using the arrow keys and shoot the aliens by pressing the z key of your keyboard. Once you defeat an alien race, steel weapon technology and use it in the following campaigns by pressing the x, c, v, keys.
Good luck and forget that you are the last hope for mankind!