This game has the potential to be a great puzzler, with a unique mechanic, but it fails. The concept itself is interesting, it provides a new way to think about space, like in Portal makes you re-think the 3D world with portals. It makes the player think about the environment before doing something: "Where should I go to be able to reach this cube?". Or at least, that's what he'd like you to do. Instead, the game simply provides super-easy puzzles that can almost be beaten by brute-forcing them. I only had to stop and think for around 5 puzzles, on the 50 this game offers. All the others, I tried to go right. Nothing there? Ok, go left. A branch? I go right, if it doesn't lead to anything interesting, I'll go left next time. This strategy will carry you through most of the puzzles. One of the hardest points of the game are the controls. When the character is upside-down, you still have to press left for him to go to his left, meaning to the right of the screen. I would have preferred controls based on the screen space, not the character's. I'd love to recommend it, because of its interesting mechanic, but the level design is just dull, and it feels like the concept has been wasted and could have given so much more than this.