Oh Man!
I had completely forgot the hours I spent 100%ing pilotwings 64...
Very interesting :)
I don't remeber exactly Pilotwings controls but I felt controlling this with keyboard a lot unintuitive. I felt I was trying to hard.
So Ithink you need to get a controller implemented on this and make use of the mouse aside WASD.
Other than, looks very nice and sharp.
And the JetPack was the "vehicle" I like the most back then. One could make a game only focused on that.