After the Pokémon GO service started in Japan the official collaboration between the game and the McDonald’s Japan also started.
The collaboration already announced this week but the details published only today. In Japan all the McDonald’s added to the game and you can find all the 2900 restaurants of the McDonald’s.

From this 2900 McDonald’s, 2500 are PokeStops and 400 registered as gyms. You can also fight in here with other players in the gym and you can collect eggs and Pokéballs if you visit the McDonald’s. All the features available free in the restaurants just like in other countries and other spots but if you are hungry stop for a BigMac too.