I highly recommend it, i enjoyed playing it.

(*)Game Complexity: Simple playstyle with a little complexity because of the puzzles on which you need to cooperate with someone else to complete them.
(*)Game Difficulty: Quite hard especially those Pro Levels.
(*)Achievements Complexity: You just need to complete everything plus there are a couple simple achievements.
(*)Achievements Difficulty: Same as Game Difficulty plus for some of the extra achievements you may need to use a guide.

I highly recommend it, i enjoyed playing it. (*)Game Complexity: Simple playstyle with a little complexity because of the puzzles on which you need to cooperate with someone else to complete them. (*)Game Difficulty: Quite hard especially those Pro Levels. (*)Achievements Complexity: You just need to complete everything plus there are a couple simple achievements. (*)Achievements Difficulty: Same as Game Difficulty plus for some of the extra achievements you may need to use a guide.