I'm intrigued by this game, but I was only able to get past the first level before I was stumped. Two options: I'm either a bit slow this morning (only 1 coffee so far) or perhaps the rules for which patterns work and which ones don't could be introduced more gradually and obviously. That said, I think it is also a selling point for people who like tricky puzzles and not having their hand held. I have been thinking about going back and trying to figure out the pattern again, so maybe the difficulty isn't such a bad thing!
Overall, well done. A good level of polish and juice, and an original concept.