Hey so Darkrai codes from GAME expired last night but Pokemon have created a second chance event which allows you to download it via Mystery Gift using the code:
Remember if you have more than one game you can download one for each! If you already claimed one from a GAME code, you won't be able to get another.
The Mythical Pokémon Darkrai was first available at GAME stores in May. If you weren't able to make it to GAME in time, here's another chance to receive the Pokémon. Simply enter this code into your Pokémon Omega Ruby, Pokémon Alpha Sapphire, Pokémon X, or Pokémon Y game to add Darkrai to your collection.
It's the same Pokémon that was given out at GAME, so if you received that one, you won't be able to get another one.
Be sure to enter the codes into your Pokémon Omega Ruby, Pokémon Alpha Sapphire, Pokémon X, or Pokémon Y game by 30 September 2016.
Don't forget to claim your Meowth event using code:
And your Victini via Mystery Gift > Internet