ESPN Zone (http://www.espnzone.com/)

Log on to ESPNZone.com and join their MVP Club. They will send you an email with perks that you redeem at the restaurant. Included in this email is a $20 voucher for food or merchandise at any one of their many locations, a free ESPN Zone mini cooler when you visit the restaurant, a 40-point game card for the Sports Arena , a free 3-month membership to ESPN Magazine, AND a free trial membership to ESPN Insider. There are a few other small perks to being a mvp as well.
Locations are as follows:

Las Vegas NY NY hotel and casino
Atlanta
Baltimore
Anaheim
Chicago
Denver
Washington, DC
New York

You have to pick this up at the location within 30 days of registering with a valid ID