This game was really fun to play, the artwork is incredible and the soundtrack is really fitting. I really like the main mechanic. The only thing I suggest you could do change is the field of view of the camera. At times when you are going really fast, it seems almost impossible to react to certain obstacles, meaning it becomes punishing to go as fast as possible.
I had a lot of fun trying to beat my highscore and as everyone else is saying, this game was made to have an endless mode (so make it happen!) :)