First of all, like I say everywhere, I'm not a games developer. I'm here to do QA, on behalf of your colleague, Ruby Makes Bad Games (tho her games are really fun, and not bad at all, tbqh).
First of all, I like the idea of a Minecraft-inspired puzzle game. The music's also lovely, and whomever composed it really captured C418's (the composer for Minecraft) musical vibe. Almost scarily so, if I'm honest. I'm sure there are loads of people out there who would just LOVE this kind of game. Sadly, I'm not much of a puzzle games player, and I got stuck in the second stage, because I couldn't figure out how to get the key. Make of that what you will, but I got a pretty good jist of how things work. Enough to write this analysis, at any rate.
Insofar as thoughts on what can be done, I'd consider three things, for sure: making the controller interface universally-accessible (I couldn't use my controller on the home menu). I'd also add a controls mapper, or, at the very least, information about the controls (Ruby's amazing at that; I'd happily recommend her for that job), so that players better know how to play the game. Thirdly, your game, sadly, got flagged as a virus by Windows Security, and I know there's a process you have to go through in order to get that taken care of. My final suggestion is that you go through that process, so Windows doesn't flag your game.
This looks like a really promising game, and I want you to know that I'm more than happy to test future builds, though I may have to ask Ruby for help on some of the stages.
Good luck!