Last month, 3000 German Pokémon fans partied in an ice hockey arena in Hamburg. They did this thanks to the efforts of the G-Pro Consult company, who did their part in promoting the new Pokémon Black & White by turning that hockey rink into a party center — and filmed the whole thing so we could see how one transforms a hockey arena into Pokémon party central.

Warning: The video is 12 minutes long.
Extra warning: The German Pokémon song accompanying the video is not great, though it is really cheerful.