I hated this game because there aren't enough clues to solve a puzzle, so you have to either guess, or wait 1 minute for the hint to be recharged. And you can only guess five times each puzzle. After that, if you make a mistake, you have to start all over, even on the relaxed mode. I spent almost my entire hour to play the demo waiting for my hint button to be refilled. That's wasted time in my book! I won't be buying it.