Overall, a worthy parody
Nice job. Beavis and Butthead is one of my favorite cartoons and for the most part you did a very good job. The beginning was all wierd and post-apocalyptic, and then you revealed that it was just the lab technician guy showing one of his "failed" attempts. Nice job with that. Overall I thought the humor was very good and fast paced enough to get a few good laughs, like when the nerd gets killed. Personally, I think that Butthead's voice was excellent and the Beavis' voice was OK, but maybe should've been a little lower and without an accent (I know you can't help that though). The fight did go on for a long time but that really showed how much work you put into this flash. Great job.