I got stuck on the second level, everything up to that point appeared the same (though there may have been subtle differences). I might give it another shot if I have time.
It was too difficult and/or I couldn't figure it out. I'm trying to get through every game so I've kind of been trying each one for a bit and then either finishing it or switching to the next if it's taking too long, but I'm hoping to get back to some of them later if I have the time.