I really enjoyed playing this game and I'm only waiting to have new levels to finish !
It's addictive, one puzzle can take up to 2 minutes (sometimes 5 for the really difficult ones), so you can easily launch a game at everytime, and everywhere.
It's a good time killer, and some levels will make you think twice...
I really loved the Pixel Art design of the game, and the concept of it. In my experience, I never played a game with this gameplay before :)