Available today on iTunes, Beeline Interactive's Ghostbusters is a freemium game about busting ghosts, which I've heard makes people feel good.
An evil deity has erected a haunted tower in New York City, the only place ghosts ever show up in large groups. Players create their own Ghostbusters team and embark on a quest to clean up the town.
Wow, I'm already running out of movie references. Probably for the best. You can get Ghostbusters here.