Randy, u Da MAN!
Let me just take this moment and say that THIS FLASH OWNS in so many ways.
Graphics - Perfect job on ripping the sprites and animations. The custom stuff is done well.
Sound - original game effects and great synch really help :). All the extra music on this one also really helps make this very enjoyable and fun.
Style - definitely high-class, and well done. I wouldn't expect any less.
Humor - how can you not laugh when you see Mario grab his crotch Michael Jackson-style and give someone the finger? The multiple endings are always a plus :)
In short, I say this is a great example, and should be used as an example of good video-game flash.