It is fun. There are no problems that I have still seen, and the only one is not due to the game! The application continues to collide correctly once you finish a level :( does not happen every time luckily, so in general, it is very fun! And I'm fine to make a puzzle once again. Not many ads, and it is relaxing. It's good to play if I ... Absolutely incredible. Certainly, there is a level of difficulty with some puzzles, but the satisfaction provided when it is complete is only euphoric! Besides, he gets it a little. And I appreciate a lot that after a slightly hard puzzle there is a simple but long one to follow, making the transition ... I often can't find things that really relax me. This is one! Simple, easy design, levels that are challenging but playable, and it is very satisfying to finish a puzzle. There are ads, but I didn't even know at first because I was so lost in the game haha. This is now my favorite game! Fun, relaxing, ideal to test my visual perception regarding color accuracy. As someone else said, I just received a new phone and this started in game 1 and I don't even care, I enjoy it very much. I would only want to pay to get rid of the ads. I have tried to pay several times, but it refuses ... Enjoying the game, good training for details and I love color. Only frustration is that the puzzles seem randomly restored during the game, causing a beginning. I appreciate the option of the paid version without ads. Added comment: As the levels become more difficult, I do not have time to pass to complete the le ...