The game has a wonderful atmosphere aided by astonishing visuals, excellent soundtrack and a very incredible overall art style. The puzzle mechanics are unique and although they rely on one specific mechanic, the additional elements keep up the challenge and introduce new ways of thinking into every new level visited.
So why the negative review?
Because this particular *puzzle* game relies heavily on twitch reflexes. A puzzle game should be something you play to use your brain, not your shooter skills and hand-eye coordination. And this plagues the vast majority of the game, including each and every bonus level. Sadly, after a time (and lots and lots of resets on one level because you just missed the strict time limit) all the fun and challenge turns into nothing but pure frustration and anger, which is a clear indicator when a game fails to be a game.
The main levels are worth a few bucks for the design and the utterly charming narrative that tells a funny, yet somewhat bittersweet story, but for hardcore puzzle gamers and achievement hunters I advise against buying this title.