Purchase a new DJ Hero game at participating GameStop stores between 2/17/10 and 3/6/10 and receive a voucher for two free tickets to a Mavericks home game. Go to www.mavs.com/djhero for eligible game dates and complete offer details. Redeem vouchers at the American Airlines Center Box Office, 2500 Victory Ave., Dallas, TX , Mon. through Sat. 10:00am to 5:00pm and during events. Must present purchase receipt and surrender voucher in its original form to qualify. Offer good only while supplies last. No rain checks. Tickets subject to availability. Void where prohibited or restricted by law. Promotional offer cannot be combined with any other offer or sold or redeemed for cash.