Got this flyer last night and went to the store, worked without a hitch. I can't testify to the quality of the game, but I can say that it costs $19.99 and you can get 3 copies for free, all you need is to be a member of the Best Buy members reward club.
https://myrewardzone.bestbuy.com/viewDetails.jspx?tc=CPN_10_20
Pick up your copies, take them to the register. They'll ring up at $19.99 each, then the coupon will apply for $20 each, the bill will total out to $0, and you go home with your games.
Enjoy!