As mentioned in the Weekly Sales Preview, Best Buy.com is offering Super Mario DS free when you purchase a Nintendo DS system.

In addition, when you order online there is also a $10 off every $100 coupon available which knocks the price down to $139.99, making a good deal even better.

To take advantage of this offer, click the link below and following the coupon directions. Once you have followed the directions, click the second link and add both items to your cart.

Best Buy $10 off every $100 coupon

Nintendo DS & Super Mario DS - $139.99