Lacks a lot
Storyline: Mario is about to finish the level and is sniped by Master Chief who then takes the flag and somehow it magically ends back up on the stick and he somewhat humps Mario.
Audio: Kind of meh since I couldn't hear the songs too well but heard the sound effects just fine.
Animation: Sprites, I know you're attempting these only until you get good with flash but it doesn't happen magically, instead of just using pre-done sprites try to create some of your own sprites instead. A UPS Mario and Orange Master Chief could have proved to be amusing and the dimensions for width were a little messed up as well.
Overall: I really don't see why these types of flashes are popular, yes I see a lot that were worked on greatly but this didn't seem to make the cut too awful great, it was far too short. Also the sprites were kind of dull, as in THESE are the kind of sprites I see all the time.
Hopefully you can improve in the future, so-so animation here.
SCTE3