The game gets really hard really fast, it is considered a puzzle but instead of focusing on the puzzles you have to focus on your reactions.

First several levels are rather easy than they start getting harder and harder and then suddenly there is a really easy level again and the cycle repeats itself. To solve most of the puzzles you do not have to think logically, but instead just think fast and avoid dying.

The campaign is like a movie, which is nice the story is OK and the play time is relatevly short it took me 4.7 hours to finish it.

Stay away from this game if you are running Windows 8!