3 stars: I play these games while I wait. To fill in the spaces of my day to help keep my mind sharp but when I reached level 26 I was unable to pick up a piece ? Tried everything because of this I was unable to go to rest of the levels which blocked the remainder of the game, so I have no. Voice but to get a different challenge game------ just a heads-up.
4 stars: Love the game, but sometimes the mini games freeze and you have to start from the beginning of the room. Likewise, if you don't finish a room, it doesn't save your progress, you have to go back to the start of the room when you return.
4 stars: This one was much easier that the last two which was refreshing however the last three levels had repeat puzzles from 1\u00262. I enjoy the game over all and will be downloading the fourth on but someone needs to go through the levels for quality control a few level not only don't make sense but are clear mistakes in the algorithm. Still very fun game
3 stars: Just started playing. Only rating to get the game to stop nagging me to rate. The other games in the series have been pretty fun though. I advise devs (if they read these) not to ask for game ratings until level 10 ish.
3 stars: Lot of fun and thinking challenges until the game can not be solved w/o hint purchases because answer is nonsense on level37 at the piano and level 39 won't even let you pickup the key in the chair under the pillow! Angry at bugs not fixed this far back in a series of games.