The music, what there was of it, I did like.
The puzzles were good, gets a little too...track-the-orders-of-operations-effectsy for me. i'm not sure what is gained from the isomorphic perspective? it actually took me a while on the 2nd/3rd puzzle to realize the objects were all just rotated reflectors, i thought they might have been splitters or something. i think top down grid would have been clearer and made it easier to reason about.
and sandbox wouldn't work for me :(