The game seemed to have an interesting component to it, but I think that there should be hints of some sort if you ask for them, since I've gotten stuck on level 9 and have no idea what to do.
Also, probably would be a good idea to lock the levels in the level-select menu until you've reached it in-game.
Lastly, might be better with music of some sort.
Overall, not bad, but frustrating when you get stuck.