Great polish game. I love the art, the music, the animation.
I really like the concept of having a little minion that reveal things.
I didn't like having a game over when I encounter the red frog. Because I didn't understand why. And also I had to restart the game from scratch. I wish the game was less punishing, and gave me an opportunitie to fix what I did wrong and continue my adventure. It totally broke my momentum and I didn't had the motivation to restart.
The audio i really great, but the door need a sound effect when opening. :p
Nice and simple puzzle.
Level design is smart.
Definitely a commercial potential game.