It was alright, but it could have used some work..
I liked the way you drew the mario characters instead of using sprites like everyone else, but at times it looked as if the movie itself was skipping. Perhaps you could work on making more fluid-like transitions between frames for your animations so they could look a little more seemless.
Also the music was great and it added a nice style to the movie, but it also sounded a little off at times. I was hearing a lot of static throughout the movie because bits of the song were played a little too loudly. Maybe in your future flash movies, you could try toning down he volume on your music files so they play a little more smoothly in the video.
I've gotta hand it to you though... Other than that, this was a pretty good movie. I didn't laugh but I saw the humour in the video, so it's not like the joke was lame like in other movies I've seen. I also loved the fact that it was about Super Mario, since I've always been a big Nintendo fanboy. Nice job on this video, hopefully we'll see more of your works in the future. =)
PS- Just a suggestion, but try adding things like scene selection menus to the beginning of your flash movies from now on, and a preloader too. That would definitely make your movies a little easier to watch if people only wanna see certain bits.