Never seen anything like this...
One of the bad things about the song was that you used so few instruments. It sounded like you used 3-4. However. There's a reason this got a 9, and a 5 for the vote; the melody kicked ass. That right there will carry a song a loooong way. And it was pretty fast, that was a good thing. Not a bad work at all, maybe you should remix this or something to put more instruments and speed it up a small notch.