Price seems to vary by location. At the location nearest me the price is $22 for unlimited wings and "blue" games. Don't really know how worth it this is (I haven't been to Dave and Busters in almost ten years) and they had a 2 for $20 I believe a couple months ago, but thought I'd share.
"All You Can Eat Wings promotion is valid one per person, per seating, in store only. Valid for limited time only while supplies last. Unlimited video game play is valid for non-redemption games ONLY and excludes ALL ticket redemption and Virtual Reality games. Not valid with any other offer. Pricing varies by location. Other restrictions apply. See store for details."