Splatoon 2 sold 670,955 copies within its first three days of release in Japan, according to Famitsu numbers, making it both the biggest debut for a Switch title and highest selling Switch title to date. This number includes physical game copies, download cards, and Splatoon 2 Switch hardware bundles, but does not include digital sales.
In comparison, the original Splatoon for Wii U sold 156,610 units within its first four days of release, and achieved lifetime sales of 1,512,789 units.
The latest Famitsu numbers also put total Switch hardware sales in Japan at 1,205,087. That’s for an almost five-month period, from March 3 to July 23.
Splatoon 2 launched for Switch on July 21.