You'll also be able to get a game for 99 cents that is abstracted enough from its source to be comparable to a ghost story or urban legend. Have you heard of the iPhone version of the Genesis version of Virtua Fighter 2? Legend has it you can see it if you search the App Store at the stroke of midnight, or any other time. It was once an arcade game, but then a mad scientist made a 2D Genesis game out of it. And then, years later, an even madder scientist ported it to iOS.
Other listed deals include Brick People and Chu Chu Rocket! for iPad, for $1 each. Those aren't really that scary.