GameStop is offering a Fight Night: Round 4 demo two-weeks before it hits stores if you pre-order.
Per the retailer's website, here's how you do it:
Online Customers: A unique code and instructions to unlock the demo will be emailed one day prior to the demo's release date.
In-Store Pickup / Store Customers: A Pre-order card with code and instructions to unlock the demo will be available at stores shortly before the demo's release date.
Game's out June 14 for 360 and PS3.
Thanks, That Gaming Site.