Wow, nice job! I really liked how one needs to think in order to proceed in this game, although I must say that not having precision in the controls make the game feel a little... not so enjoyable (for me!). The thing about difficulty-based games is that they let you "grow" and gain control of the situation, and I didn't feel like that very much. And a thing that you mentioned in other comments is that it has a story, but it's not clear enough that it does. You did an awesome project in three days, but if you want to add that story as an important feature in your game, consider giving more "life" or "dimension" (if that makes sense) hahaha. Keep going with the great work!
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I see what you mean for the controls precision. If I were to continue building on this concept, I would rather flesh out the story side of it, and create puzzles involving no precision, but rather a good understanding of what is in each dimension and how an action in one dimension can have an impact on another.