Eh... Overdone to death.
Graphics:
First off, the technique with the sprites was really crappy, as you left the black background in there with it. Of course, I'm sure you meant to do that, since you were oh-so-subtly trying to make your point through bad graphics and crappy flash powers. But I digress. The backgrounds made me chuckle. You got the majority of your points there.
Style:
Overdone. Plain and simple. I've seen so many "omg, sprite flashes are unoriginal and they suck" movies that they've ceased to be good. You have to make it new and at least take a different slant if you want people to take it seriously.
Sound:
Awful. Well, I take that back. The part with the typing sounds and the windows noises made me laugh. :P Well-placed. But I will say that I greatly dislike it when flash artists intentionally change the volume at various parts of their flash, especially if it's as extreme as yours was. Ouch.
Violence:
Mario killed a goomba. A goomba killed Mario. No blood, no drama. I gave you pity points.
Interactivity:
Your preloader was funny, what with all the unfilled fields and whatnot. You would have gotten more, had your play button showed signs of being active when my mouse icon was over it. :p
Humor:
Not funny. At all. Like I said, it's been overdone. I'm not saying that anti-mario/anti-sprite flashes can't be funny. I'm just saying that if you want to make a good one, do something original with it. Crack on a specific aspect and expand on it or something. I dunno. All I know is that I'm seeing the same thing I've seen many times already. Recently.
Overall:
I was a bit generous with the review score, I think. I personally voted to blam, but you'll probably pass, since it has Mario in the title, lol. Ironic, isn't it?