This game os one of those that can be played over and over because it always presents differently and is all about pure skill and reaction time. At level 10 it becomes almost impossible. I think this game lacks one thing that would really make it a lot more fun to play, and that is a speed control... or different modes to choose from when starting, e.g. an Easy, Intermediate, and Hard choice. Maybe I'm just too old and it's my reaction time, but seriously if you are a person that is easily frustrated this is not a game for you. The game is definitely worth trying however I doubt many people will get very far because of the sheer reaction skill I doubt most people have. It probably works better with some mouse configurations than others.. a wired mouse may be actually faster in this game.