Start/End Dates	2009-11-27 through 2010-01-11
Country	Japan

Details

The elusive Legendary Pokémon Latias or Latios will roam around the Kanto region in your Pokémon HeartGold or SoulSilver Version game after you've beaten the Elite Four and claimed the National Pokédex. Now there's a way to catch both of the amazing Pokémon in your game! Receive the Enigma Stone via a special Nintendo Wi-Fi Connection distribution, which will lead you to the chance to catch Latios in your Pokémon HeartGold Version or Latias in your Pokémon SoulSilver Version!