This is really good. You´ve made some funny and good battles with protagonists and antagonists from many Games/Animes/Mangas/Cartoons. This is great but i personally think that things, whom need special insider infos are even better. I don´t think your hangover was bad. In fact it was good placed. The background music you made from the different places, where the fighters came from is nice also. The only bad things are: You have sometimes spoke to quiet, so its hard to hear what you´re saying and the quality of the animation itself is not the best. Don´t get me wrong, it´s not like i hate it, cause i like it a lot, it´s more that i would prefer it to be in better quality. That means the way you do it is great already, so you need to concentrate on your animation quality next.
I would really like to see what comes next, so well done, you did it right.