Challenge winning material right here. Honestly, this has to be your best game so far.
Graphics are stylish, soundtrack and sfx quickly hook you up in the game, and all of that; but the most key thing here, that you also managed to do in your other games, but not as much as on this gem here, is the replayability aspect of a roguelike. It's amazing. The game could certainly use some things, like a simple starting menu, pause button, and some other minor things, but the entire concept is pretty good.
This could easily be fleshed out into a larger thing; still roguelike, but maybe every time you enter a specific area for a shop, dust advancing and enemy movement freezes. Or have some kind of encyclopedia of every weapon part and which enemies drop it. Of course, I'll never tell you how to do your job, but I'm just saying that after the 7 Day Roguelike Challenge goes through, this could be really invested on.
Overall, amazing game. Top notch, hope you get high up there. ;)