Great game! Unique puzzles, and really makes you look at things in another way. It's amazing how many times the level seems quite difficult, and yet there's been a very simple solution right in front of you the entire time!
This is a fun game, but one thing that is really upsetting my gameplay is that I don't know how many colours I'm aiming for to attain a gold star during the first run-though. It is frustrating to keep trying to finish a puzzle with 3 colours, only to find out that you get a gold for 4 stars anyway. And if I finish the puzzle and find out I didn't get a gold star, I'm forced to go back and completely re-do the puzzle from the beginning.