Start/End Dates	2012-07-12 through 2012-09-27
Country	United States

Details

To coincide with the Porygon events in Japan and Korea, the Pokémon Global Link in association with IGN distributed various Porygon related event downloads. Players could download a Porygon from the Pokémon Dream World by entering the password IGNPORYGON. Also, players could get a Porygon2 Doll to decorate their house in the Pokémon Dream World. Once players have claimed the Porygon2 Doll on the promotions page, they could visit the Pokémon Dream World and check their Dream Catalogue to find it.


Finally a C-Gear skin featuring Porygon-Z was also available. The password to unlock it was: PORYZCGEAR2012. Both the Porygon event download and the C-Gear skin are for Pokémon Black Version or Pokémon White Version. The Porygon events rans from July 12th, 2012 until September 27st, 2012.

Source: http://www.pokemon.com/pokemon-news/pgl_porygon-2012-07-12/