Pretty good.
It was at best, mildly funny. The beat parts were the intro, first skit, last skit and the end, with Luigi dancing. If I had to say anything, give the sprites some animation when they're talking, or voice overs. Maybe get some background music for the skits, I find it helps keep attention, and speaking of backgrounds, that was probably the weakest point of the flash, with all the backgrounds being the same, even the clouds were in the same position. Finally, speed things up a bit, some of those skits were too long and drawn out. That's all teh criticism, other than that, I find this to be a decent flash.