Here's a treat for Metal Gear Solid fans. If you pre-order Metal Gear Rising: Revengeance at your local GameStop store, you'll get a special skin that dresses Raiden up like Cyborg Ninja from MGS.
If you're not familiar with Cyborg Ninja, just know that he's awesome. I mean, look at him!
As for you Europeans, it doesn't matter where you pick it up, because the Cyborg Ninja costume will be included in all versions of the game there! Ya lucky ducks. Revengeance lands in North America on February 19, 2013, with the EU release to follow on February 22.