Thanks for the feedback I was planning on putting in checkpoints that you only have a certain amount of time to get to, as you cross the check point you get a little more time to get to the next one. Each lap will decrease the amount of time you get at the check point. As for the shooting, It was a way to clear a path of traffic so that you could find the shortest path to the next checkpoint. But you would have to use it sparingly because each shot you take your ghost would also take the shot so it would get fairly chaotic.
I think adding more life to the player as well as points system you could cash in for like a shield or clear all bullets on the field could give the player a little more control and make the player last a little longer.
Thanks for the feedback <3