The NPD Group has released their sales report for video games in the US in the month of October, and Super Mario Maker is a huge hit. Nintendo reports that the Super Mario Bros. level design tool has sold over half a million copies in the US, including 445,000 units from launch until October 3rd, which is the period covered in the NPD report.
Wii U sales were low in August, but
Super Mario Maker pushed consoles off the shelves, and Nintendo reports that sales jumped by 110% in September. Nintendo also reports that 3DS hardware sales are currently up 25% over last year. Additionally, Animal Crossing: Happy Home Designer sold around 115,000 in its first week in the US.
Source: Nintendo Everything