Not too bad
Not too bad at all actually. But since the point of a review is to help the author with suggestions, I have a few.
1. Graphics were good, but try to put a little more work into them to make them smoother (the renditions of the characters were great though)
2. If you're going to use the actualy voices using sound clips try to figure out a way to put some more in, other wise just the occasional dialogue sounds too forced. (Especially the Kamehameha thing at the beginning, not too good of a choice)
3. Work on the little details like when Trunks first appears he looks like a teenager, not a kid.
Other than that, great work, I really look forward to seeing the rest, keep it up!