Being only the third DS game to sell over 5 million units in the US, Super Mario 64 DS has joined a pretty elite crowd. The other two titles to also sell over 5 million copies are New Super Mario Bros. (10.6 million) and Mario Kart DS (8.5 million). These figures are just for the US too!
Super Mario 64 DS was released 8 years ago.
(Via Siliconera)