Good idea
It's a really good idea, I like the graphics and the way you steer the bike, with the lines and all, however, I hate that the screen scrolls on its own, so if you start going in a straight line at one point at the bottom, there is a black line preventing you from going upwards, so you keep going between the edge of the screen and the black line a the bottom, and the screen starts scrolling UPWARDS all of a sudden, so basically your bike ends up at the outside of the screen, and you can't see it, impossible to do anything from there! A good idea would be to scroll only when the bike starts approaching the edge of the screen, or to always scroll in a way to keep the bike in the middle, like in many other games that scroll... There is no point in speeding up or slowing down since either way you end up going slower or faster than the scrolling screen, you end up at the outside of the screen...