On that matter, I'm giving this a 3/5. While I absolutely love this game and think it's a great concept, there are just too many glitches. I'm sure you can fix them, and then I'll probably give this a 5/5.
I feel like this game was simply to difficult. A hint at the beginning of each level, I feel, would make the solution easier to find, but would still grant some satisfaction to the player when they finally figure it out. Take Something Literally is a perfect example of this method.