I just started playing it and it is fun. After a few levels, you start getting ads. At first they are short and not too many. As you progress they get to be a bit annoying. I think this is done on purpose to get you to pay for the app. 2 clicks to close ads.1 click which you think it\'s closed. then you have to make another click to actually close it. OR you tan take longer and wait for both to run and then cloose ad. Graphics are good. Since I am still new, this is all I can state for now. This was my favorite game until I got to level 13x13. Here it\'s possible to connect all the dots without using all the squares. But the game considers that unsolved so you have to find a different solution. That takes the fun out of it. And the lack of multi level undo makes it frustrating. Ads are super annoying; Some you have to close 4 times to return to the game, some don\'t work at all forcing you to close the app down and restart it, and you have to deal with them after 2 or 3 puzzles! You end up spending more time trying to close down ads than you do actually playing the game which isn\'t even that difficult