Nice graphics and quiet a fun game but some levels (for example level 42 or level 45) are nearly impossible to pass without paid extras :( . There are a lot of bugs in level 45, such as the game stops on hint mode and you can not make any move, even can not play the hint or sometimes two graphics overlap and game stops and you have to leave the level. Generally in all levels the hints are not useful, they are the worst move you can make. A lot of things to improve, sorry...