Saint's Corpse
The Corpse Parts are a key element unique to the plot of Part VII: Steel Ball Run.
About
At the beginning of Steel Ball Run these mysterious objects known as the "corpse parts" became the center of attention to both Diego Brando and Funny Valentine, but soon both Gyro Zeppeli and Johnny Joestar were after them as well. Feeling that they could not allow these objects to fall into the wrong hands, our heroes collected them and on the way met many of Funny Valentine's personal assassins and some neutral members such as Hot Pants. Yet the mystery remained at large as each corpse part was obviously giving our heroes clues as to where the next one was located. Soon enough, possibilities of the corpse parts once belonging to a long dead Saint arose and whoever possesses them could become the new world leader.
The corpse parts act similar to the Bow and Arrow from the original series, giving those who are imbued with them Stand powers; in Diego's case turning him into semi-reptile, a clear nod to his original vampire powers in the previous universe. Each corpse part seems to react highly different with characters as Gyro momentarilly acquired a stand known as Scan while someone like Diego retained properties of the stand effect used on him.
As of now some characters have had visions of the Saint, who clearly shows himself to be none other than Jesus Christ, as to how his body parts arrived upon America is unknown. In one occasion, Johnny was willing to go as far as to destroy one of the corpse parts as to not allow his opponent from obtaining it. This action as said by Gyro was blasphemous and Gyro told Johnny it would be better to let fall them into the hands of the enemy than being destroyed. This clearly shows that Johnny has a 'dark' side within him.
Lucy Steel was recently imbued with several corpse parts; changing her and even giving her a stand.
Interestingly, the corpse parts are unique as they only exist in one dimension. This is shown when Hot Pants and Diego were chasing after the train the president is on. They were sent into another dimension by Funny Valentine, and in that dimension the president holds a diamond instead of any of the corpse parts. It has recently been revealed that the reason why Jesus' corpse parts were scattered across America was because when Jesus rose back from the dead, he set traveled to the east and eventually to the (unclaimed at the time) land of America where he was greeted by the natives and welcomed by them, and he lived there for the rest of his life (without anybody being aware of it) up until his death. Although he was dead, his body parts were still very much alive and scattered themselves across the land (carrying within them the essence of the dead saint) into very specific locations which later served as checkpoints for the Steel Ball Run race as shown on the map.
Corpse Parts List
Eyes: Each eye had the word turbo writing around the iris. The guardian of the eyes seems to be a robot-like stand who can only be seen by those holding the eyes. Using the eyes grants the user stands relating with observation as seen by Gyro's Scan. They can also allow a person to see other corpse parts the person is holding.
Skull
Spine:Discovered by Lucy Steel at the end of the 4th Stage.The spine didn`t react her but,when Blackmore took it, he could perceive for a moment the true owner of the corpse. When Blackmore is defeated the spine fused with Johnny Joestar.Later, The spine was stolen by Hot Pants, letting Johnny only with a little fragment in his body to retain his stand.
Rib-cage
Heart: Incredibly boosts the physical body of whoever is using it, as seen when Funny Valentine from his pudgy self into a muscular build. It's presumed the person's physical strength increases along with other talents.
Pelvis
Hands: It is unknown who has the right arm and hand as of, now but Johnny Joestar has the left arm and hand replacing his previous parts which were forcibly removed by the corpse hand, awakening his stand Tusk's powers' and abillities
Legs