A special code will let you download the Pokémon Omega Ruby and Pokémon Alpha Sapphire Special Demo Version from Nintendo eShop for your Nintendo 3DS or Nintendo 2DS. Find the special code at participating stores, on websites, and at special events.
The Special Demo Version features a unique adventure where you can encounter cool Pokémon, including ones that Mega Evolve! Plus you’ll be able to bring reward items you obtained in the demo into Pokémon Omega Ruby and Pokémon Alpha Sapphire.
Look for a code for the Special Demo Version at these locations:
Have fun exploring the Hoenn region with the Pokémon Omega Ruby and Pokémon Alpha Sapphire Special Demo Version!
For fans in these countries go here for more information.