This is so cool! Flight controls are a ton of fun and Im glad you can walk around on the ground too. This was a pleasant surprise :D
I felt that the fire breath was a bit short range, or at least the particle effect implied that. It would also be cool to have some things to destroy in the air or enemies there, I felt that It was so much fun to fly around but all the objectives made me slow down and go to the ground.
Overall great stuff!