Planet Defense

Evil Martians invaded our planet and want to finish the whole population, throwing off the special striped bomb, shoot them, let them explode before reaching the ground. But to earn points for this can only be on the ground level, on the defense of the planet will not yield points, but instead forces you to drag firewood from one place to another, the only way you'll get it. But the drop bombs that will not stop, so quickly move the mouse.