what is going on in the back of this outfit
Free Step Dodge
David Gregg
It appears as if the spirit is about to shove a CD up his...
crapoZK
It's a "stand", Basically, it's a spirit that is formed based off of your fighting attitude. Stands have different ability, some are cool, some are strange. Pucci's stand, I forgot what it's called, but he can take other people's stands away, by discarding CDs from their bodies.
http://deadliestfictionalwarrior.wikispaces.com/file/view/Pucciwhitesnake.jpg/262807474/Pucciwhitesnake.jpg