honestly just ok
It's too long to start, essentially non-animated, and very very dark. Most of the "animation" consists of yellowish heads bobbing up and down on a black background. Maybe dark colors are called for in this genre, but in this case it smells like an excuse to not have to draw as much. The rockin music and the premise of vampires aren't enough to get my blood pumping, without solid craftmanship to back it up. I think that the score is rather bloated, and this really deserves a 2.6 or so.
Lighten the background, draw more bodies, add more frames of real animation instead of moving around a head, and either reduce the opening credits time or give some way to skip by it.