You've got to catch them all ....
The news sending stocks tumbling almost 18% Monday
The game's release triggered massive buying in Nintendo's shares, so as Reuters Markets correspondent Vikram Subhedar says they're still looking healthy.
Vikram Subhedar, Chief Correspondent, European Stock Markets, said: "Even with today's fall they're up about 60 percent since the day before Pokemon Go launched in the US."
Nintendo's announcement came on Friday, with a warning that the smash hit game would only have a limited impact on earnings.
Pokemon go was developed by a US affiliate, And Nintendo says income from licensing and fees will be limited.
But that might just be the short term outlook.
Independent market analyst, Darren Sinden, said: "I think as a test case it has done very well. Ten million downloads in a day in Japan, of course the hard part of all of these things is monetising them, I believe Nintendo have set a precedent and I hope they will be able to capitalise on that going forward."
Pikachu and co may have largely eluded Nintendo's balance sheet at the moment.
But with the Kyoto-based gaming company set to report first-quarter earnings on Wednesday, investors will be looking to see where they may pop up next.