The official uk site for HG/SS has updated with details on the Shiny Legendary Dogs Wi-Fi event starting next month. Like the US, we’ll be getting an oppertunity to gain all 3 dogs
The event kicks of on Feb 7th, When Raikou will be available until the 13th
From Valentines day on the 14th, Entei will be available to download until Feb 20th
And Suicune rounds of the event, available between Feb 21st and Feb 27th
All are Shiny and learn a move that they wouldnt ordinarily know. When one of them is traded to Black/White, it will unlock the event where you can catch Zoroark. You will not be able to encounter Zorua or Zoroark in the wild, so you may want to take this oppertunity.
You’ll need a European copy of either Diamond, Pearl, Platinum, HeartGold or SoulSilver. We don’t know if these will also be able to download on American copies of the games as they have a ‘live’ event at Gamestop stores to get these Pokémon
Information on Celebi has not been released yet, it most likely wont be until next month
That’s all we have for now – we’ll bring you more when we learn it