Princess Peach: Showtime! also received updated figures, having crossed 1.3 million sales as of June 30th, up from 1.22 million.
The HD remaster sold an additional 33,000-plus units in Japan over the course of its second week on sale.
The remaster was also accompanied by Luigi's Mansion 3 re-entering the top 10, taking the No. 7 spot.
Luigi's return to Evershade Valley is a welcome one.
It is the second-fastest selling Nintendo Switch game of the year in the UK, behind Paper Mario: The Thousand-Year Door.
Tantalus Media previously also worked on The Legend of Zelda: Twilight Princess HD and The Legend of Zelda: Skyward Sword HD.
Here's everything you should know about Luigi's return to Evershade Valley.
It's not the busiest month for game releases, but June has some long-awaited heavy hitters that should keep their fans busy.
Nintendo has released a new trailer for the upcoming remaster ahead of its June launch, showcasing its updated visuals.
A known leaker seems to be hinting at imminent updates from Nintendo on the two upcoming Switch titles.
The enhanced remaster of 3DS title Luigi's Mansion: Dark Moon will be coming to the Nintendo Switch next year.