Nintendo shares closed 7% higher in Japan on Friday after it revealed sales of "Pokémon Pokopia" surpassed 5 million units on its flagship Switch 2 console.
The milestone was hit just over four months after it launched on March 5, Nintendo said on Thursday. This would make it the second-best-selling game on the Switch 2, ahead of "Donkey Kong Bananza" and behind "Mario Kart World."
First announced in September last year, the game wasn't seen as a huge blockbuster, given it is a spin-off from the main Pokémon franchise. Its gameplay has elements of "Animal Crossing," one of Nintendo's most popular games on the original Switch.
Investors watch updates of game sales closely because hit titles can often drive shipments of Nintendo's console, which has faced some headwinds.