I liked the beginning...
I liked the beginning because it was truly random. I've seen many "and he rocks out and saves the day" endings, and I think the F-Zero song was a poor choice anyway.
I've watched this flash 11 times, but only all the way through once.
The last good scene was when he did the tablecloth trick. It goes downhill from there and is not very funny, and a sort of unsatisfying ending for how great the beginning was. It seems like you just ran out of ideas and pulled the ending from the sitcom ending hat. I'm definitely not saying that the movie should have ended in a long matrix style fight or anything, I just think he would have to have done random stuff before tiring himself out... and I did not get the impression that he was going to just cop out and rock. For how original the beginning was, I'm just dissappointed about the resolution.