Let me take another stab at this without pesky character limits: an upcoming promotion will give out a free download code for Pokemon X/Y for folks who purchase either a 2DS or 3DS XL and one of six games: Animal Crossing: New Leaf, Yoshi's New Island, LEGO City Undercover: The Chase Begins, Super Mario 3D Land, Donkey Kong Country Returns 3D, or Mario Kart 7.
You know which ones are good, but I'll go ahead and call 3D Land and New Leaf must-plays anyway. While the offer is apparently from Toys"R"Us, it looks like this will be handled through Club Nintendo and not any specific retailer. The copy reads: "Limited Time Offer. Register at Club Nintendo between 3/1 and 3/31/14. See club.nintendo.com for details."
No details just yet, but presumably those are coming at the end of this month.