This is super unique! I love the mechanic, the presentation, everything!
It is super hard though, I got close but I could hardly clear the second level! There's not really much you can do when you make a mistake, so I end up just replaying the same first few moves of a level over and over again. Not too sure how best to approach this, perhaps letting people climb back up? Not sure.
Still though, awesome entry! Keep working on this!