Great game! I enjoyed cheesing levels 3 and 4, but it feels like there's much more incentive to quickly go through what I think is supposed to be the "harder" path than go the long way around. For example, you can quickly go through Level 4 by just holding forward at each checkpoint, so there's no point to go around. Being able to turn the camera would also be convenient. Overall, I am a sucker for this type of game, and the gravity gimmick is really cool at the end, so it leaves you wanting more in a good way!