Pretty good
But I would like to point out the interesting things you did in this movie.
First, there were some parts where you made the characters in human form rather than stick figure shape, that was alright
Another thing was when Goten and Trunks fused. Before they fused, both of them looked like they were adults. Usually they only did it when they were kids, but still it was a pretty good idea.
Then came the fight of Vegitto and Janenba. first thing Vegitto never fought Janenba. It was Gogeta that fought Janenba. Vegitto only fought Majin Buu. The other thing was that you used the sound file of when Vegitto fought Buu. kind of funny in a way.
The reason I point those things out is to ask you if you did that on accident or you used your imagination to think of something else. If you did then I applaud you for doing that. Good Job.
P.S: I am making my first flash movie with fighting stick figures and its pretty good too but im not done yet. This movie is inspired by your movies Ralph. See ya