I didn't do the Halloween part but maybe I will toward the season I'll redo this one. I had this going great until after I baked the Wiggle Bones and the animation and blender file was never quiet the same. I was able to recover it but I'm not happy with how it turned out. I had to change settings to get it to work but the quality went down and the Wiggle bones is completely different in Blender than the render.
Anyway this is the files. I tried the VSE and managed to figure out how to splice 3 sequences together, just to see if I could. I want to get into the VSE more. That's down the road but a definite goal.
