Lots of potential Nice, clean design and an imaginative set of challenges. My one gripe is that it ended just as I was getting warmed up, and what I thought was a door to another room turned out to be the exit, much to my chagrin.
Good puzzle Clues ARE there, the point of the game is to find them. Nice difficulty level, not easy, but not impossible.
Hard It may seem hard but you can do it. Because if I can do them all so fast then it's not hard.
Not my favorite Was tough and not real logical clues.
Pleasant set of short puzzles. Entertaining, not long, some easy puzzles and some difficult head-scratchers.
Boring No clues and had to see walkthrough .. one level
Adjustment of UI etc. with internal structure change