Its Pretty cool. Here are some things I like about it:
Smooth Movement and Acceleration
Visual Effects
FOV change when accelerating
Things I would add:
A Speedometer
Since the rocket thing is on the back, when you go up maybe make it go up at a slight angle
*For the character, a idle animation when not moving, and that more agile looking anim for when your moving.
All in all, it looks good man. keep working and good luck in your future development.