Cool idea with very good art, but the game seems a bit unfinished and lacking polish. In my first attempt at playing it, just by running and jumping to the right i managed to fall off the world and had to refresh the page to fix it. Also would have been nice to have a key for jump (maybe z?) but otherwise the controls are solid enough. If expanded on I'm sure it would be very good, but in the current state it is not quite there yet