Played it. And though if going by gut, it just fits the rewind mechanic in a sense of "if you fail, try again" with an interesting take on parallel universes. Overall, my view is it's playable, to a basic demo degree. With at least elements of audio and some variation on game-play.
May have benefited from actual instructions. Though hindsight, the trial and error game-play suits the premise well in my opinion.