Solid, short, and simple puzzle game. It was very uniquely presented and had a fun key gimmick. I don't think this game would have been interesting if it went on for any longer than it did; nor do I think I would be interested in any similar games or experiences in the future. It was, at its core, an excellent short story, which amazed me with what it did and also made me feel that I had completely appreciated and enjoyed the core idea, satisfied and with no need for more.