I gave 5stars b/c I really love the game..one if the things that I wish was just slightly different is the keys. Granted you can buy more but you only get 2..and the time it take to replenish 1 key Is 3hrs...other than that I'm really enjoying myself..some levels are challenging which is cool b/c it make you think outside the box. Even on some "easy levels" there is still a challenge.