You could do better. Please improve the animations and graphics. Add more levels and increase the difficulty gradually.
You have a mute button
Very good puzzles, but I did find some of the differences very had to click on due to their size.
I can't give you more than a two because I have played very similar things in the past. And this didn't excite.
I could just press the hint button over and over again and get through every level, if I chose to. However I lack the motivation for that, even if the art is very good.