No tutorial. No explanation of the game. I love brainteasers, riddles, etc, and this might be a great game, but I'm not interested enough to waste time on something that can't bother to make even an attempt at explaining the basics. Also: there are plenty of other worthy brainteasers out there. If the makers can't bother to waste their time making a basic tutorial or making it interesting enough to get through level two, why should I waste time playing, or care enough to try?
Great game. Gets harder and harder
Since the latest update (bug fixes) The app will not start
Makes you use your brain
Keeps me occupied ;)
It is interesting and fun at the same time