Great, complete, highly polished experience. Well done!
Graphics look production-grade, I could imagine buying or downloading game that looks that good in Windows XP / 7 era with a bit more content.
Sometimes camera changes position making the ball be out of view (i.e. the part where you magnet the ball up on a 45* slope, right before next level). A small issue, because it then goes back to previous position, when ball goes back far enough.
Great job!