Very intresting mechanic with some clever and tricky puzzles! Also quite polished overall except for the lack of music and sound. The graphics are simple but quite clean, I think they work pretty well already.
I don’t think I quite fully understood under what condions cubes became interactible - sometimes I just couldn’t access the cubes I wanted without really knowing why which was a bit frustrating. Maybe the game could need an improved tutorial for that, altough I still mostly got by quite well with trial and error.