I thought I'd return the favour of you reviewing all my shit by giving you my own (:
Of course, sadly, I'm not knowledgeable about chiptune at all, so I can't really help at all, but I think the guy below me nailed it on the head. Overall, it kicks ass, and I'd love to see a lot of your stuff in flash games on NG, but yeah, after a while, without some variation, things get a little stale. It doesn't grate on my ears as much as it doesn't spice things up as much as I think it can be spiced up.
Then again, I still don't know anything about chiptune, so all this criticism could be for naught, so take it with a grain of salt!