Thanks for the detailed feedback. I didn't think about the camera control possibly being too sensitive. I could probably add an option for that.
A lot of the questions about the mechanics are intentionally left for the player to figure out, though a few are explained on the How to Play page. "you can only regenerate stamina only by going to the lowest altitude" is close to accurate but not quite. :)
I didn't like the snake style controls
You mean you don't like snake controls in general or the way they are implemented here?