Here’s a hint: It’s one of these 408 titles. (Oh, that top pic is a hint, too!)
https://lastchance.cc/is-this-the-biggest-wii-bundle-ever-5702002%3C/a%3E%3C/p%3E
New Super Mario Bros. Wii went on sale in Japan on December 3, 2009, meaning the title sold over four million copies in less than a year on sale.
However, the game sold nearly 3 million copies by January 2010.