Seriously underestimated!
There are a few modes of play, as well as a "creation" mode, where you can make up your own levels to play in once you run out of the defaults (wich will probably take a long time, since there are plenty of them). Adventure mode consists of a quick compiling of all game modes, complimented by a cute litttle story to put them all together. For the more casual gamer, you have "Explore mode" where you can select what type of game you want and play that. "challenge mode", for (brace yourselves!) more challenging play! And last but not least, "Party Mode", for those of you who enjoy playing with friends and family.
If you're into innovative puzzle games with nice presentation and characters, this highly addictive game will keep you up into the late hours of the night, and give you serious sores on your arms the next morning.