Papa Sangre II
Developer: Playground Publishing
Price: $4.99 for the iPad and iPhone 4S and newer iPhones
Ratings: 93 (out of 100) from Metacritic; 4.5 stars from App Store users
This spooky one-player audio-only action game debuted on Halloween, and the premise is that you are dead and trying to make your way back to the other side.