X-Men Origins: Wolverine and it's ours -- all ours?! Fine, you win. But, for real, this is really: The. Last. Time.
The Wolverine GameStop pre-order bonus includes four "exclusive" in-game rooms (and is exclusive to the "Uncaged Edition" for PS3 and Xbox 360, at that). The rooms are separate from the main game, contained within a mysterious laboratory, the Weapon X Area. Players are loaded into a hallway with access to each room. (It doesn't take an "analyst" to predict that this content will become premium DLC, eventually.) You'll find full details of the rooms after the break.