Start/End Dates	2011-10-20 through 2012-01-19
Country	United Kingdom

Details

Press Release

Would you like to get a special Mamoswine with the Thick Fat Ability? ONM have teamed up with the Pokémon Company to bring you this special Pokémon that's available from the Pokemon Global Link website with an exclusive password.

Mamoswine is an ice/ground type which means that fire moves are super effective against him. However, this special Thick Fat ability halves the damage taken by fire-type attacks, making Mamoswine a lot tougher to beat.

If you want this Mamoswine with the Thick Fat ability, you'll need to log into the Pokémon Global Link site and enter the password MAMNintendoOfficial to add it to your collection.

Mamoswine with the Thick Fat ability is available until 19 January.

If you've not yet signed up to the Pokémon Global Link, you should head over to pokemon-gl.com now. Then you need to play Pokémon Black or White until you reach Striaton City and get your C-Gear.

Then open the C-Gear and tap ONLINE, then GAME SYNC, then note the Game Sync ID. Enter the ID on the Global Link site and you'll be there.

Source: http://www.officialnintendomagazine.co.uk/31578/pokemon-global-link-password-mamoswine/