We all knew that Super Smash Bros. was going to take the North American gaming community by storm, but now Nintendo of America has spoken out to confirm just how popular the latest entry in the beat-em-up series has been, by confirming it has become the fastest selling title in its history.

After just a week on store shelves (Smash Bros. Brawl launched on March 09), the feature-packed fighter has shifted more than 1.4 million units in the United States, 874,000 of which were snapped up on the game’s first day on sale. Nintendo boasts that the game sold at a rate of more than 120 units per minute between launch and March 16.

“Super Smash Bros. Brawl has made the leap from video game to cultural phenomenon,” said Cammie Dunaway, Nintendo of America’s executive vice president of Sales & Marketing. “Game reviewers and the public alike praise its fun game play and extensive, inventive content.”

North America’s sales of Super Smash Bros. Brawl trump those of Japan, where the beat-em-up launched this January, whose gaming fans bought 872,000 copies during the first seven games on sale.

Astonishing stuff, no? Let us know how you’re enjoying your time so far with Smash Bros. Brawl in the comments section below.