Thank you so much for all of your feedback! I think most of the problems people are having definitely stem from the poor flight controls. I'll be honest, it never occurred to me to control roll with the keys and yaw with mouseX. I'll certainly be doing some experimenting with that.
Once I sort all that out I'll do another pass over gameplay and balance. I had plans to implement three difficulties for the game but I ran out of time. There are a couple of bugs (as you can see) that I'd like to clean up too.
Thank you so much for playing my game!