I was really excited at first because I love these sorts of logic puzzles, but having so few options in each box made the solutions too obvious. I would love to see a sequel with the same sorts of clues, but that gives us "stickers" to place in possible solutions, so that the player has to construct the solution from nothing.
This is a really nice. The upgrade system is good, and the achievement system is nice. My only complaint is that it's too easy. There isn't really any challenge to collecting the cheese, other than running out of gas, and dodging the spikes. Otherwise, this is a really great game.