This was super duper fun! 15:09.2 rewound first completion. I think this concept can be expanded upon much further. Couldn't stop laughing while playing, and was continually interested in the new difficulties and gameplay mechanics that came up during play. I only wish it was more punishing.
Edit: my best is about 29 seconds of rewind. Furthest I've gotten perfect is up to starlight in the third level, and I've done up to blizzard in that level alone. Really want to perfect clear this... currently tearing my hair out.