Martian manhunter. Alien war

You - a space duelist.
In the game you have to fight with alien Martian.
Shoot him from Colt or he will shoot you.
Fighting by the rules you will be a classic duel of the 18th century.
You've got the gun, the gun at the stranger.
You are face to face. On the forehead of sweat appears.
Drove a lump to the throat.
You wait for the command of the judge.
Seconds stretch like a clock. The fate of humanity and your life depends on you.
Alien coming is at hand. The outcome of the duel will decide everything.
Shot by Martian ahead of time - lose.
Shot after a Martian - die.
Alien eyes bloodshot, your hand firmly holding dueling pistol.
Time goes by ... tick tock ... tick tock ...
And "fire" command.
Things to shoot faster refugee alien weapons. Save humanity.

Good luck to you.