Begin by booting up Alpha Sapphire or Omega Ruby and selecting Mystery Gift, Receive Gift, and then Get With Code. By entering the code 2015LATIOSLATIAS or POKEMON38031 (if you're in Europe) will net you a special ticket you can pick up at the nearest Pokemon Center.
After receiving the ticket head off to Petalburg Gym and visit your father. He will then place you on a ferry to an island where you can battle and capture whichever Legendary Pokemon you don't have.
If you're playing Alpha Sapphire you will get Latios. If you're playing Omega Ruby, it will be Latias.
To Find out what we thought of Pokemon Omega Ruby and Alpha Sapphire click here.
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