To navigate through, watch out for the tricky gravity with pressing space bar to add thrust to your pixel-copter and release it before hitting the top and don't forget to collect fuel power-ups to not to get out of petrol. That's all you need to do.
Looking for a good score? While trying to fly as straight as possible is a bit easier, it will not result in such a high score. Try to do some daring manouvers to receive some extra distance.
Good Luck!
Your Pixel-copter is down!