Might be fun, but i uninstalled after puzzle 3. First of, TOO MANY frickin ads, as usual. the 3-4-5 layer kind, after every puzzle, that take 45-60 seconds, turn off your music and keep you hostage till theyre done. Second - the puzzles are so hard to see you will burst an eyeball. Spidery, light text, tiny puzzle area, tiny font. Enlarging feature keeps frame small, just makes lines and squares expand within. useless & painful to stare at. Ads ridiculous. Could be much user friendly