Head over to Walmart.com and get Lego: Marvel Super Heroes: Universe in Peril (Nintendo 3DS) for $12.19 (Regular $29.96) Competitors have this item for $19.99. Choose in store pickup to save on shipping.
You can also purchase this for $12.19 at Target.com. Do not forget about Free shipping at Target. Sign up for  Target Redcard and can score an additional 5% off.