In Z Escape you play for a military officer who tries to save as many of his fellow citizens against evil invaders who try to kill them all. You fly on a helicopter and shoot the enemies from the sky. Try to kill all of them, or at least, as much as you can. Then your aircraft lands and you try to get on board as many survivors as you can. With each level, this task will be more and more challenging, but you will also be able to upgrade your weapons to much more effective ones and also get boosts to kill the whole crowd of foes in one hit.