I've seen better, but this was good.
For a sprite-based animation, this one spells, "experienced talent," all over it. Not to say that's bad -- the amount of effort put into it is evident. It's just that, when compared to some of the other greats available on this site, it pales badly. Then again, I highly doubt your goal was to submit this for comparison rather than entertainment, so I'll just say, this flash was a cut above the rest.
Probably would have given this a three on the side score, but the small jokes in the credits pushed up the rating in your favor. It was good, but a little sluggish in some places.