[Uh-Nu-Buh]

I bet one of your neighbors stole it. Make a list of them all, and try to remember if any of them have been looking at you funny lately. If they have, mark it down. Also take note of anything else suspicious--like if any of them have been too friendly (trying to make up for it), unfriendly (from the guilt), not around as much as they used to be (because they are playing your game), or around too much (because they don't want to make you suspicious.) Anyways, post your list here and let us give you advice on who we think stole your game.