The controls are unique: it's a good challenge to actually make the turns cleanly, which is normally something I would take for granted.  You can see my review/testing of the game here:

liked the concept of the game. could use a reverse so you cant just get stuck on the wall

To me, the controls don't make sense for a space ship.  You should be able to turn without thrusting forward should you not?  It makes it impossible to complete the coarse without slamming into walls as there is no way to slow down at all.

If you had the ability to turn without thrusting, you could angle the ship in a direction that would slow your momentum.

After many attempts, I managed to do a complete round. You called "without hitting the wall" as a bonus challenge. I'm interested, did you manage it? For me it would be very helpful if there was some sort of reverse and/or reset button. You could add a timer to challenge yourself regarding the lap time! Keep on working on it!

I tried my best, but I couldn’t do it without hitting the walls :(