I'm not a big chiptune fan but I love this! the samples, and synths all blend together really nicely and I look forward to the finished version cause the mix is already top notch, the bells and mallets don't in the way of drums which are super tight but not obnoxious. Perhaps there's a bit much repetition? in a game context (depending on the game's pace) I guess this is ok, but at the beginning I count 8 bars before anything really comes in, I reckon it sounds fine at just half that length, but it's your choice. My only real beef is that as much the beat changes a little throughout, it would be nice to hear different samples and not just different rhythms, the more chill section just after half-way in begs for a more lighter ride or hat or something, it's a difficult thing to do, I know, but I think it'd help bring out the change in mood.