If you haven't yet picked up a copy of Poké mon X

If you decide to pick up Pokémon X, you'll find an unlock code inside for a special Garchomp. If you go with Pokémon Y instead, you'll be able to add a special Scizor to your in-game party. Garchomp and Scizor are two of the most popular Pokémon introduced in previous generations, and both monsters have gained renewed relevance in this latest sequel through the arrival of their new Mega Garchomp and Mega Scizor forms.The nature of this promotion is rare, as Walmart doesn't often offer added in-game content as an incentive for video game purchases. And it's even more rare from the Pokémon side of the coin, as I personally can't remember a time before when an Event Pokémon distribution has been tied specifically to a new product purchase, rather than being made freely available for all fans. (If you can recall an example, let me know in the comments below.)No word yet on what makes these Pokémon "special," either – if you pick up one of these Walmart copies and download the Scizor or Garchomp, let us know that too. Are they shiny? Are they holding a rare item?We do know the deadline, though – this promotion will run until June 30 of next year.

Lucas M. Thomas has been writing for IGN since Nintendo's active console was still the GameCube. You can follow him on Twitter, @lucasmthomas