This game was really well done. It plays very smoothly and is responsive. It does a good job of setting up puzzles that seem apparent but are more complex in practice. The concept is very unique and feels good. The ghost section does a good job of feeling like cheating, but also presenting puzzles in its own way. I found myself having to solve a few pieces on the fly once I figured out how the interactions work. The rooms do w good job of setting up progression through a relatively short game. It felt good getting into just the 3rd room let alone completing all the puzzles.