I really enjoyed it, my only gripe is that it is quite difficult to pass your past selves, I would have preferred if they were just ghosts, but I understand that that would take away from the idea of racing your past self
Glad you enjoyed! It sure does take a while to learn how to beat your past selves, and I don't blame you for that. I tried making it easier by making your past selves accelerate slower, and just slower in general, but it's still really hard!