I liked the idea, definitely simple enough to understand immediately yet with the potential for more complex levels (as you showed; I didn't play all of them, though). I think either the controls are a bit buggy or the actions you can do at each moment aren't fully clear to me (sometimes it doesn't jump or I can't join pieces), but with a bit more polish you can definitely get something playable for hours! The art and the music were also very good! Make sure you continue with this!