This is impressive (Zelda: Breath of the Wild took around a month to shift 2.7m units) and marks Nintendo's biggest launch ever for a Switch title, beating all Wii U game launches. According to UK-based Chart-Track, the game's release has also inspired a 64 percent increase in Switch console sales.

In its briefing, the company said it plans to make more Switch systems available, and would like to see Super Mario Odyssey become "an evergreen title" beyond the initial launch excitement. With the holidays fast approaching, Nintendo will no doubt be leveling up on the back of this one for some time to come.

Update: Nintendo also mentioned SNES Classic figures. Since the mini console shipped a month ago (September 29th), the company says it sold 2 million units. Of course, a number of retailers did pre-orders before that date and small restocks have hit shelves in the time since.