According to game-tracking website VGChartz, sales of Nintendo's pop-culture phenom Wii Sports have surpassed those of legendary platformer Super Mario Bros., making the breakout Wii title the best-selling video game of all time. And it only took two years and two months to do it.

The data is based on cumulative worldwide sales figures ending the week of December 27, 2008, which indicate that lifetime sales of Wii Sports have exceeded Mario's staggering 40.24 million units.

Shocked? Don't be. Unlike most video games that can be bought at retail, Wii Sports comes bundled with the Wii hardware in every territory other than Japan and Korea. In other words, if you bought a Wii, you bought Wii Sports whether you liked it or not (chances are, you liked it). With over 45 million Wiis sold worldwide to date, it's only logical that Wii Sports would start smashing records sooner or later.