It's a cool arcade game. the sound and visuals and how you control the car all feel good.
I have noticed 2 issues:
1. After you acquire a single crystal you are much faster then to shadow meaning you can cheese the game by doing circles in place for a min and then move on. the other card will get stack there for a while.
2. the holes can be unfair spawning right on you, I think they should flash for a second before.