Pre-order Resident Evil 6 for Xbox 360 or PlayStation 3 from GameStop.com in the United States and receive a free Resident Evil 6 t-shirt when you enter the promo code “RESHIRT” at checkout. You will also receive a free Dynamic Theme for the PlayStation Network or an Xbox Live Avatar Pet.
Note that this does not appear to be a regular pre-order bonus, as it is not mentioned on the game listing pages for any version of the game. It is only shown on this page, and appears to be a special IGN-sponsored deal.
Click the image at right for a better look at the promo, including a pic of the t-shirt.
Resident Evil 6 will be available on October 2nd, 2012.