Chopper Mission is a free game! Your goal is to get as far as possible with your helicopter.
You have to avoid different obstacles by carefully adjusting your height. It is a quite difficult game to play, even though you are only using your left mouse button. It takes some precise feeling for speed to be able to tell which height will be sufficient to overcome the next obstacle. Chopper Mission game is completely free to download and play.
With a bit of practice you may get to the end safely. Try it out, it is fun and there is nothing to lose.