It's almost impossible not to compare Quantum Conundrum to Valve's beloved Portal games, but this new contender can hold its own in that comparison. Its puzzles are wonderfully designed -- ingenious, fun, and fair. Figuring out that you must quickly switch between the fluffy and heavy dimensions to change the weight of a box on a rotating handle in order to spin a crank can result in a kind of satisfaction not easily dismissed. 5/5
Shame it can't compete with Portal's storyline, characters or sarcastic atmosphere...