McDonalds Japan has revealed a new promotion for their McD de DS (マックでDS) platform called Gather Pokémon Pieces! (ポケモン ピースあつめ!). Patrons of participating McDonalds locations in Japan who bring in their Nintendo DS from July 12th, 2013 until September 5th, 2013 will be able to download the app to their system. Those who collect all 8 puzzle pieces from various McDonalds locations will receive a coupon for a small fries.

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Patrons can also receive a special Jirachi for their copies of Pocket Monsters Black, White, Black 2 or White 2 from July 1st, 2013 until July 31st, 2013. This is the first time in 4 years that Jirachi has been distributed.

A line of Pokémon toys will also be distributed with Happy Sets starting July 12th, 2013.

Source: http://www.mcd-holdings.co.jp/news/2013/promotion/promo0617b.html