I definitely like the track. I think you should extend it a bit. Maybe work on the mix -- the harmonies you are making are a little more complex than the usual thirds, fourths, and fifths that you come across. The bass work was excellent, you made a dynamic sound with the lower parts that made the repetitive melody well supported.
Like I said, just make it a little less noisy. I know that's probably due to the nature of 8-bit, but I feel like the mids could be cut down a bit. I could hear this in a RPG or adventure game/movie. Very nice. Dragon Warrior-esque feel.