Following on the test program Nintendo launched in Tokyo last spring, the Kyoto-based game company and the fast food giant announce “Mac de DS”.
https://kotaku.com/nintendo-invades-japanese-mcdonalds-with-wifine-5011083
Way back in 2005, Nintendo of America teamed up with McDonalds to offer free WiFi in the United States. This new nationwide service is a first for Japanese McDonalds.
http://kotaku.com/gaming/wifi/free-ds-wifi-at-mcdonalds-131518.php
Starting June 19, the service rolls out a DS wireless service at restaurants across Japan. Customers who bring their DS units to McDonalds can download items and original content as well as play others via WiFi. Besides Pokémon mini-games and character downloads (Jirachi, anyone?), there are also McDonalds quizzes and even a McDonalds manga service. I’m loving it?
任天堂岩田社長「全国のマックに笑顔を」−−”マックでDS”サービス発表会 [Famitsu]