A Lot of In game bugs
One of things that I notice right off was that the controls would get stuck like sometimes when I press left he would go left as long as I hold left other times I press left and he would only go left and no other arrow keys or attack button would change for a few seconds. This happen no matter what so it almost makes the game unplayable because I never feel like I have total control over the blue dot and makes it frustrating and hard to get into.
Over all I like the idea of the game and the music is really awesome but you need to work some of the bugs out this to make it playable.
Anyway keep up the work.