11 minutes? PAH!
I may not have beaten it in 11 minutes, but once (during an overnight gaming festival in the basement of a friend with very forgiving parents) I did play it for 13 hours straight.
Basically, this guy's parents were very well-off, and he had every video game platform in existence at the time (along with a nice TV for each one) as well as two computers. There weren't many people there, so we basically each picked our favorite system and went at it from late in the afternoon until dawn the next morning. Occasionally some of the people would leave to challenge their friends, but I had yet to experience SM3 at the time, and I refused to budge. I did play a few 2-player games, though.
Okay, I'm going to watch that video, now...
*11 minutes later*
Holy f***
Although, I don't think that particular trick with the two magic flutes works in the American version of the game.