Who said this was Earth's physics?
Seriously, you're controlling a living ball, and for all you know it's made out of wacky styrofoam. Either way the physics really isn't that bad, I just replayed to level 19 [hardest level for me] straight through without messing up [until i got to level 19 of course]. What does irritate me though is the glitching of the platforms. If you have two jumping platforms side by side and jump in the middle things bounce differently. Then there's the whole you go to far to the side the ball magically slips off it [that upsetted me most]. Because of these bugs the games rating went to a 7. The music wasn't annoying in my opinion, but if it did you can just turn it off. Beginning animation and artwork looked good and the sound effects sounded really well. It doesn't have much replay value after you beat it, so I'm giving it a 6.5 overall, then rounding up to 7 for voting purposes.