McDonald's Japan Launches Pikachu McFlurryJuly 15, 2017
The dessert cups also have Pikachu's face on them. You can see images of the cup designs here.
Nerdist reports that McDonald's asked people on Twitter to guess what Pokemon flavor it was going to offer before the Picakchu reveal. Some of the flavors were scary such as Bulbasaur Broccoli and Gengar Purple Potato. We don't think people would have been rushing to McDonald's for a Broccoli McFlurry but we could be wrong.