The game has a nice concept, but it feels unpolished. It would have been nice if you could have a life meter, since I found myself dying quite often. Also, the levels didn't have much variety (I think I went through a level that had more enemies added to a previous level layout)
This is definitely a revolutionary multiplayper racing game in my book. I love the idea of racing against "ghost" players since you can pause at anytime and there's no lag to deal with. The controls are also very smooth and responsive. Overall, this game impresses me, 5/5.