Free Mars is a shooting game on www.flash-game.net in which you act as a solider to fight against these Martian colonies. Use arrow keys to move around. Press the space bar to fire. At the left upper corner is your healthy bar. Once you have successful save an official officer, your healthy bar will reveal power-up. Avoid contact with those colonies and the bullet. And some of these colonies weapon can give off a laser. Be careful to it. Don’t forget to read the introduction before you play the game. Here you can get more details about the game background. Will you be the first one to pass the whole challenge? Let’s start it now!