In a newly launched promotion on Club Nintendo, buyers of a new Nintendo 2DS, 3DS or 3DS XL and one of 6 qualifying games will receive a FREE copy of the recently launched Pokemon X or Y, a $39.99 value! To be eligible, you must register your system with your Club Nintendo account between March 1st and March 31st, and purchase one of the following games: Mario Kart 7, Super Mario 3D Land, Animal Crossing: New Leaf, LEGO City Undercover: The Chase Begins, Yoshi’s New Island, or Donkey Kong Country Returns 3D.
It is important to note that this only applies to systems registered between March 1st and March 31st, if you have registered it before then your system will not be eligible. After registering, you will be sent a code that you can use for either Pokemon X or Y, and you must use this code before May 1st, 2014.
For more information, you can find the official site HERE.