New Super Mario Bros. 2 was released in Japan on June 28th, 2012 and it has been made known how many copies it sold in just two days. In a matter of two days New Super Mario Bros. 2 sold 431,000 copies. Keep in mind this is just the figures for Japan, so it looks like a pretty good start. Now we just need to wait and see how well this game sells when it hits other regions like Europe and North America.

Source: mynintendonews.com