Wonderful visual style and feel. One thing I would say is that there's not much of a punishment for spamming Z for the entire game, and that takes away from some of the challenge. Also, I think the game might be more rewarding if there was a way to reach every snowflake without missing some of the others. That would really get the "ninja" feeling down, lol. Overall, I thought it was a very nice experience, if a bit short.