Start/End Dates	2011-04-23 through 2011-05-29
Country	South Korea

Details

For a limited time, players in South Korea were able to visit a download station to receive the Liberty Pass (리버티티켓) via local wireless. It was not available via Nintendo Wi-Fi Connection like other regions during this time period. The Liberty Pass is an item you can use in your game to hop aboard a ship and sail to a location where you can catch the Mythical Pokémon Victini! Victini is a Fire- and Psychic-type Pokémon—the first of its kind. And Victini has the Victory Star Ability, which raises the accuracy of all your Pokémon in battle, so it's the perfect Pokémon for the Double Battles and Triple Battles you'll play! Also, you can download the Liberty Pass as soon as you begin playing your new game, but you'll need to reach a certain point in the game before you can use it to catch Victini.


This is the only way you can catch the Mythical Pokémon—you won't find it anywhere else in Pokémon Black Version or Pokémon White Version. Victini is Level 15 when you catch it, and it already knows some incredible moves: Confusion, Incinerate, Quick Attack, and Endure.

Use the Liberty Pass to board one of the ships moored along the docks in Castelia City. When you arrive at Liberty Garden, you'll discover that something bad has happened... The case will take you to the basement of the lighthouse, where you'll find Victini waiting. Get ready to battle the Mythical Pokémon! This is your chance to catch a Pokémon you can't get anywhere else. If you have to flee or you defeat Victini by accident, don't worry—it will reappear in the basement again. The Victini you catch will be Level 15. Confusion is a Psychic-type move that has a chance of confusing your target. Incinerate not only does damage, it also burns up the target's held Berry. Quick Attack is a move that is sure to strike first. With Endure, the user will withstand any attack that would cause it to faint, leaving it with 1 HP.

Source: http://pokemonkorea.co.kr/html/news/news_view.asp?N_idx=429