The call just came in - unknown forces are currently assaulting your world. Prepare to fend off the hostile intruders at all costs in Helicopter Alien Invasion! Helicopter Alien Invasion is an action-packed retro arcade game. Hop into your cutting-edge combat helicopter and take to the skies! Destroy all hostile targets and defend your homeland. Can you save your world from the invaders? Play now, and let's find out!