Start/End Dates	2015-02-26 through 2015-03-31
Country	Japan

Details

To celebrate Serena's participating in her first Tripokalon Tournament, Serena's Fokko was distributed via a universal serial code that was first distributed in the Data Broadcast Boardgame. Serena's Fokko could be redeemed in: Pocket Monsters X or Y or Pocket Monsters Omega Ruby or Alpha Sapphire.

The official Japanese Pokémon website revealed in mid February 2015 that Serena's Fokko would be distributed.


An on-screen message in Pocket Monsters XY #62 informed viewers to get the event download serial code to unlock Serena's Fokko.


"In today's data broadcast, a "universal serial code" with which you can receive "Serena's Fokko" in your "Pocket Monsters X/Y/OR/AS" video game will be announced. Press the d-button on your remote and participate in the data broadcast!

（今日のデータ放送の中でゲーム『ポケットモンスター Ｘ・Ｙ・OR・AS』で「セレナのフォッコ」がもらえる「共通シリアルコード」を発表するぞ。リモコンのｄポタンをおしてデータ放送に参加しよう！）

On February 27th, 2015, the official TV Tokyo Pocket Monsters XY anime website updated and also announced the code as: ＳＥＲＥＮＡ０１


Sources: http://www.pokemon.co.jp/info/2015/02/150214_a01.html