I picked this up based on the price drop and LordGek's favorable impressions and I have to agree that this is really good. The polish and aesthetics are over the top good. The gameplay is enjoyable enough, but the game is too slow for me on Normal level. I am on my first game and I paused after what must be about half an hour of play and on level 14. After I finally get croaked, I will stick to the harder difficulties.
The graphic and music alone make this an easy recommendation. After some more play, I will post an app store review.