Pokémon Go, the latest mobile app game that is taking the world by storm and McDonald’s restaurants in Japan are reaping the benefits as almost every single outlet is a Pokéstop or a gym (two of the go-to places for Pokémon players to go to level-up).

Players download the app and walk around to catch little ‘monsters’ called Pokémon they then fight other Pokémon at gyms. PokéStops and gyms are real life locations, businesses or landmarks that have been swamped by players hoping to advance in the game.

Details of the partnership between McDonald’s and the game’s developer Niantic haven’t been disclosed but has opened up a new revenue stream for the game and gets more diners into McDonald’s restaurants.