Nearly a dozen executives at companies from Sony Corp (6758.T) to Angry Birds-creator Rovio said Pokemon Go would be a tough act to follow, and some even said a challenge would not be worth it. Gamers should not expect the quick release of a rival app anytime soon, some said.

I think this is a good thing. We’re not looking for clones, we’re looking for innovation in markets, including gaming. Instead of trying to figure out a way to clone a successful product, figure out how to make one yourself.