Oh boy, I liked your game so much!
For me, that was the most creative and natural way to implement the theme, congrats!
You did right making the checkpoints (I could reach the third one, can't deaccelerate after the ramp :c ) and this music is on point! I think just a few post processing effects would make it look even nicer, but awesome job, one of the most fun games I've played!
Also, I would be very happy if you played my game too :3