Nintendo's shares fell 18 percent in one day after the company pointed out the smash-hit game would have only "limited" benefit for its earnings.
State department spokesman John Kriby interrupts his presser statement as he realizes one of the reporters is playing Pokemon Go.
The war has endured for more than five years.
Japan, one of the world's biggest gaming markets, joins the US, Canada, Australia and more than 30 other countries in Europe to offer the "augmented reality" game.
A driver allegedly playing Pokemon Go hit a police car early on Monday (July, 18) in Baltimore (Maryland, USA).
Confusion over the launch of Pokemon GO in Japan has gamers angry and investors selling the shares of Nintendo.
Pokemon GO continues to boost the shares of video game company Nintendo. They are now worth twice what they were when the 'augmented reality' game was released just over a week ago.
If you were born before 1984 you may have been slightly baffled by all the talk and media coverage of Pokemon Go.
Pokemon GO, an "augmented reality" game for smartphones has become a craze on the streets and given a massive boost to the share price of Japanese video-game giant Nintendo.
China’s long-standing ban on video game consoles has been temporarily lifted, its government has confirmed.
The restriction was introduced in 2000