I love this flash...
First off, a comment on a comment...
"This is a flash with crappy graphics and sound, and to top it all off, there's shit flying everywhere."
That's kind of the point. It's supposed to look so ridiculously bad. I take it as almost emulating and exaggerating the look of the original Mario.
On the subject of the flash. My only gripe is that the potty break, while funny, is out of place. Otherwise, it's nearly perfect.