Nintendo's "Pokemon Go" smartphone game may have scored instant addicts upon release in Australia, New Zealand, the U.S. and Germany, but fans in Japan are vexed that they have been left out with no release date announced.

"Pokemon Go has been released in several countries, but it will take a bit longer in Japan. Please wait patiently a bit longer," tweeted Kento Suga, a marketing manager in the Asian region for Niantic Inc., which developed "Pokemon Go" with Nintendo Co. and The Pokemon Company. That was on July 6, the day the title stampeded into three of the four other countries.

Many Twitter users responded angrily.