Polnareff couldn't call Jotaro because Passione was so deeply involved in every part of Italy's infrastructure that any call for backup, especially if it was international, would have been noted and dealt with before Jotaro could even arrive.
Polnareff was 33 in the events of part 5. PIS and so the spotlight doesn't get taken; Araki has mentioned in one of his part 3 interviews that he doesn't like "fanserivce," which was probably the reason why he didn't have Joseph encounter Alessi in part 3, Jotaro was the MC and Jojo for that part.
Because he didn't. Diavolo controlled all of Europe, including the government, so if Polnateff tried to contact Jotaro, he would have pinpointed his location and killed him. Remember that when he contacted Bruno and met Diavolo a second time was the same day.
Polnareff goes with Jotaro and Joseph to avenge his sister, who was murdered by a man with two right hands.
Polnareff ends up in the body of a turtle, and even though he no longer has a stand (it is operating on its own) he can still see stands. His lack of having a stand is also the reason he was able to grab the arrow at the end of episode 35 of Golden Wind.
Khnum is truly the weakest Stand in all of JoJo's Bizarre Adventure. Its ability is Transfiguration, allowing its user to take the appearance of another person.
Joseph Joestar is one of the weakest Joestar characters in the series. His stand is not all that impressive since Purple Hermit only produces thorny vine-like extensions that can bind someone. He also has the ability to use televisions or cameras for spirit photography that serves as a form of fortune-telling.
Jolyne's hatred for her father reached such a height that she even changed how her last name was spelled. This is why Jolyne spells Kujo as Cujoh in order to avoid anyone making a connection between the two.
Jotaro abandoned Jolyne when she was young out of concern for her safety, worried that people associated with Pucci would come to find him and seek Jolyne as a way to get to him. Jolyne comes to understand this aspect of her father, and how he cared about her from a distance without getting involved.
Jolyne Cujoh is the titular main protagonist of JoJo's Bizarre Adventure: Stone Ocean. The daughter of Jotaro Kujo, Jolyne is the only female JoJo to date.
Overall the nerf allowed Jotaro to become a better character, who wasn't afraid to show his emotions. So it is safe to say that Jotaro getting nerfed by Araki was pivotal in the success of Stone Ocean.
It's generally a way of drawing attention to yourself, especially in a way that shows superiority or strength.
Choosing to save his daughter, Jotaro lets go of the opportunity to get to Pucci in time. Pucci slices Jotaro's face in half, fatally wounding him.
Any version of Jotaro can destroy any version of Pucci without the plot armor and Jolyne ...
Just a stylistic change, nothing else. Though the characters losing their muscle mass may be due to them growing up, as it has been 11 years from part 3 to part 4. The characters introduced from then on simply must not work out.
Giorno Giovanna had a big dream of becoming a "Gang-Star," however, it wasn't going to be easy to accomplish such a ginormous task. Luckily for Giorno, he had comrades who he could trust, and they helped him to realize his dream. This wrapped up Giorno's story, and he never appeared in any of the other parts.
Narciso Anasui (Narc Anastasia in the English dub) is a major ally from the 6th storyline in JoJo's Bizarre Adventure, Stone Ocean. He is an inmate in Green Dolphin Street Prison who falls in love with Jolyne and decides to help her with defeating Enrico Pucci.
In terms of shipping, Jotaro is mainly paired with Noriaki Kakyoin.
While Jotaro has become more caring with age, he is a noticeably distant father towards Jolyne Cujoh, but still feels bad that he had to leave her without a father figure for so long. Despite still being rather stoic, he truly loves Jolyne.
The most popular and common cry, "ORA ... !", originates from noises in progressive rock songs that Araki liked, like from Pink Floyd's Dark Side of the Moon, which he wrote down phonetically.
During the final battle, Anasui asks Jolyne's father Jotaro for his blessing for his and Jolyne's marriage, claiming that when everything is over, the two will get married.
The best-known Stand in the series, Star Platinum belongs to Jotaro Kujo, one of the main characters in the show. Star Platinum outshines most other Stands in the series in terms of speed and power.
On the surface, Stone Free is essentially a close-range Stand with incredible speed and strength, much like Jotaro's extremely powerful Stand Star Platinum, highlighted even further in the similarities between their respective punch rushes.