Absolute masterpiece of game. It fucks up with your brain, but the brain takes revenge and you end up solving stuff. Non eucledian geometry fools the player in the beginnings of the game, but after the player becomes more advanced, the game becomes more and more fun. The best aspect of this game is the gun mechanic. I've dreamed a lot about extruding things just like I do in the game. I deleted all my data, attempting to replay it, but it's not the same anymore, because I know how the game works. I'm jealous of those who haven't played it.