You have a good start here, but there's quite a few issues. First off, the timing if off quite a bit, even though the actual beat placement is pretty close. The second thing that bothered me is that the combo buttons got so high... you need to add more combos! Personally, I think that songs shouldn't go past 20 combo, unless it fits better with the song. In this case, it definitely needs more combos. Fix it up, and maybe give it an easier version, and it might be good enough for ranking. Good luck!