Are there any games in which bones files can be recycled, in the sense of, once the player kills the ghost, the ghost gets a THIRD existence either as a more powerful undead being, or alternatively as a more subtle memory (for example, you might find a sword with his name on it, or he might be mentioned in a random "bad luck" message during certain phases of the moon. It would be nice to think about how we could permanently weave dead characters into the game, without the game getting too cluttered.