|“||My skill with explosives has become a special ability... I take this as a mission from God!||”|
Oyecomova is a Neapolitan terrorist who participates in the Steel Ball Run. Having heard of Gyro Zeppeli's participation, he seeks revenge on him and attacks Gyro alongside Mountain Tim and Johnny Joestar in the Rocky Mountains.
He is a young man in his middle twenties, with long dark hair and an odd sense of fashion: his make-up's theme is loosely based on the American flag and tattoos representing clocks cover his legs and arms. Interestingly, the netting-like veil over Oyecomova's face is meant to act as sun-protectant and an insect screen, which was meant to give him an advantage in the race.
Oyecomova is a fairly disturbing individual. At first, he seems to be fairly passive, from where he actually warns others not to touch him due to his Stand. However, this is apparently a front—He has shown that he has no qualms about killing others, and displays fierce dedication to the missions he takes up, seen where he was ready to resume his plot to assassinate the King of Italy after killing Gyro Zeppeli. He also often claims that God's will is the cause of why he got where he was.
Oyecomova is a terrorist from Italy. A few years before the Steel Ball Run, he had attempted to assassinate the king by blowing up his carriage. It was the king's good fortune to not be in the carriage; however, five people—including two children—were killed. Oyecomova was arrested and imprisoned to await his execution, but within the prison he was being held at, Oyecomova managed to kill a guard by putting gunpowder in his ear. With this accomplished, he proceeded to make his escape.
Over time, his skills with explosives improved and eventually evolved into a Stand when Oyecomova entered the Devil's Palm. Using his Stand's abilities, Oyecomova attempted to assassinate Gyro Zeppeli, as well as anyone who got in his way; in his rampage, he blew up a hotel, nearly killed Mountain Tim and came very close to finishing off his intended target, which he had stated would be followed by him completing his previous mission of assassinating the king. He was defeated, however, thanks to a combination of Gyro's steel balls and Johnny's Stand.
- Main article: Boku no Rhythm wo Kiitekure
Oyecomova is the owner the Stand Boku no Rhythm wo Kiitekure, who is capable of turning any object into a bomb. Unlike Yoshikage Kira's Killer Queen, Oyecomova's Stand can turn many objects into bombs at the same time. The bombs aren't activated by Oyecomova, but they burst when they lose their "pins", clock-like objects that appear on the bombs. Should the pin stay still on the object, it won't explode.
Unlike Killer Queen, this Stand doesn't seem able to perform any kind of close combat, but on the other hand is capable to turn anything Oyecomova touches, spits or breathes into a bomb, including water and smoke.