This game is simple to pick up but eventually grows very challenging. A true delight for puzzle fans.
Gameplay: 4/5
+ The controls are pretty straight forward. To move your marble one tile in one direction (North-South-East-West) you use the arrow keys. To move two tiles you press the spacebar and the direction you want to go and you will jump. To rotate the camera you press Shift + arrow key. Finally to go in a free-floating camera mode you press C and can use the mouse to look around. Overall the controls are simple to use but occasionally the jumping can get frustrating (especially if you press down the spacebar and realize you didn't want to jump. Most of the time you can let go and just jump straight up, but if you are on a breakable tile you are most likely screwed). Speaking of tiles, there are a number of different tiles that affect your marble. Just to name a few there are regular tiles, broken tiles (which can only be moved over once then fall apart), ice tiles (which continually move you in one direction and you can't stop until you reach a non-ice tile), fire tiles (which can only be traversed once, then will kill you if you jump on it again), etc. If you read the manual (which I highly recommend) you will understand the dynamics of the game but it's pretty easy to pick up. The other thing to take into consideration is the gravity of the marble. It is possible to roll off the side of the puzzle in which case you have to restart, but there are also puzzles in which you must use this falling technique to your advantage and to reach other parts of the map. Overall I have to say I really enjoyed playing this game and by the end the puzzles get so hard that I was spending about an hour on each puzzle just running through every scenario in my mind until I found out the perfect path to completing the puzzle. It was a lot more challenging than I expected, so if you like to wrack your brain around puzzles this game is perfect for you.
Story/Presentation: (N/A)
+ No story present, and no story needed.
Graphics: 4/5
+ The graphics are just fancy enough for this game. It didn't need anything over the edge and distraction, but it still retains some beauty. To start off, every tile is "pixelated" until you approach it and then the pixels are destroyed and you can see the real image. This is a neat effect that also adds to the gameplay. The animations and other effects are clear and fluid but like I said, never distract you or make you lose focus of the puzzle.
Value: 5/5
+ It's hard not to see the value in this game if you play it through. I just finished the last puzzle and it took me between 15 and 17 hours to do. Now, most people probably won't make it to the end because they will get frustrated or give up, but if you are persistent and take the time to really attempt a solution you will get so much more out of this game. Plus, after you beat the game there are always the Steam Leaderboards where you can try to get a higher score for each level and compete against others. This definitely helps its replay value and I am really tempted to go back and try to get higher scores now that I have completed and unpixelated every level. I picked this up during the Steam sale, but the default $10 is absolutely a worthy price tag for anyone who really likes a challenging puzzle game.