No bad, dearest dear.
Yup, not bad. Good animation skills, nice character drawing, catchy song choice. And Vincent looking mildly bored while Cid is showing of got a smile from me, and so did the sunglasses Raichu.
But, I still would not give this a nine or a ten, and I am a bit sad so many people do. There is so much awesome, original, artistically amazing work on Newgrounds that is being overshadowing by something I find good, but not fantastic. I like your personal style, but you did make pretty much every character have an identical face. Try to work a bit more on varying characteristics. And maybe on smoothness.
Yet, kudos for doing this frame to frame (aw god I don't think I would have the patience), and keep the good work up. Also, plus one point for Pyramidhead because I am a fangirl.