This may as well be Heartwarming Parent & Child Moments: The Video Game. If both a character and their son or daughter are playable, you're guaranteed to get some moment or two of affectionate dialogue between them (aside from Diavolo and Trish).
In the story mode, after Jotaro has defeated DIO in his Heaven Ascension form there's a cutscene mimicking the opening chapter of Diamond is Unbreakable, except that it features Jotaro comforting a much younger Jolyne, implying that Jotaro is making a better effort to be a good father in this new timeline.
Jotaro: Stay close to me. You know, I wanted you to stay at home with your mom to watch over the place. I only brought you along so you'd stop bawling and throwing tantrums. Just keep quiet until my business is done. Got it? Explanation While he still comes off as a Jerkass dialogue-wise, it's a Call-Back to the time her older self ran off...and subsequently had her soul stolen by D'Arby The Elder. And the Jerkass-ness is undercut by the fact that he's affectionately patting her head as he says it.
Jotaro and Jolyne also have a Dual Heat Attack, where both of them send Star Platinum and Stone Free to simultaneously attack with Rapid-Fire Fisticuffs. Both of them even say their somewhat shared Catchphrase: "Yare Yare Daze/Dawa".
Despite her rocky relationship with her father, what's the first thing she says when bumping into his teenage self? "Thank God! You're alright!"
In the Stone Ocean chapter, Part 3 Jotaro is still mentally reconciling the concept of being a father in the future, when D'Arby The Elder shows up, and tricks Jolyne out of her soul. Jotaro is furious, and even bargains his own soul to save a girl he's only just met, immediately checking to see if she's alright once he wins the poker game. Considering the same man also threatened his best friend, mother, and grandfather, It's Personal.
Jolyne staying behind with her father to battle Heaven DIO, instead of leaving with the other Joestars. As much as he doesn't want to show it, Jolyne trying to save her dad and getting subsequently absorbed by DIO obviously pains Jotaro.
Team up Ermes and Part 3 Jotaro at the end, and Ermes says this:
Ermes:Hey, when you have your kid, make sure to pay attention to her, alright?!
If you pair up Part 4 Jotaro and Ermes, however, Jotaro becomes glad that Jolyne has made a good friend.
Part 4 Jotaro:You're a trustworthy ally. Take care of Jolyne for me.
Ermes:I don't need you to tell me that...
In a weird way, the Dual Heat Attack between DIO and Giorno. DIO does his famous MUDAMUDAMUDAMUDA! on the opponent, when suddenly GioGio joins in, trying to imitate his father. The two of them happily beat on their foe with DIO smiling, possibly from pride and fatherly love.
DIO:You did it, kid.
DIO at first glares at Giorno, and recoils with mild disgust when he sees Giorno's eyes, which look an awful lot like Jonathan's, DIO's archenemy. But then Giorno starts yelling "MUDAMUDAMUDAMUDA!", and DIO's expression changes into a proud smile, as if to say, "He may look like JoJo, but that's MY boy!"
Win quotes between the two:
DIO:Heh...'As expected of you, my son' ...is what I should be saying here, right?
Giorno:If it's for the sake of my Dream, even you can be of use… Dad.
One quote is DIO telling Giorno to "lend him his power" for DIO's goals, which is essentially the closest an immortal psychic vampire gets to telling his son "Do it for Daddy, Giorno! Make Dad proud!"
Giorno has some heartwarming interactions with his other dad, too. When he and Jonathan finish a match together, he can sometimes say
Giorno:What's this warmth enveloping me?
DIO's Dual Heat with Enrico Pucci has DIO placing his hand on Pucci's shoulder◊. When you consider that Pucci has an Ambiguously Gay relationship with DIO, it's kinda sweet. Explanation They spend a lot of time together during flashbacks in "Stone Ocean", including reading books together while lying on the same bed (while Dio's shirtless, no less). While Word of Gay confirmed that DIO isn't picky about gender as long as the person interests him, Pucci's sexuality was never clarified.
If DIO's the one to start it; they begin the attack by holding hands◊.Explanation It's a Mythology Gag to a moment in "Stone Ocean" (where Pucci tells him, "You're the king of kings. Where will you end up? I want to see it through, to the end. I love you as I love God.")
Whether we talk Part 2 or Part 3 Joseph, he has nice moments with his son Josuke.
Old Joseph and Josuke share a Dual Heat Attack. Josuke is less than thrilled at first, but gradually warms up to Joseph as they beat their opponent into submission. By the end of the attack, Josuke is awed by his father's strength.
Young Joseph teaches his Catchphrase to his future son when they win.
Young Joseph: Okay, now give him a snappy one-liner!
Josuke: Your next line will be "You haven't won this yet!" Like that?
Yukako and Koichi embrace during their Dual Heat Attack if she's the one that initiates it.
Yukako:Our love is invincible, isn't it?
When Josuke and Koichi finish their DHA, Josuke remarks about how Koichi's grown to be a very reliable friend.
In terms of personality, Jotaro Kujo is in many ways opposite from Jonathan Joestar... One can be summed up as a kind gentleman, and the other a defiant delinquent. And yet, in spite of all that, Jotaro has nothing but complete respect for his great-great-grandfather. He says he owes his and Joseph's strength to his ancestor, and is glad to have met him. The fact they've been established as near opposites all these years and yet are still truly family is incredible.
In a similar vein, Josuke, who probably has very limited knowledge of the Joestar bloodline, is in awe at Jonathan's strength. Jonathan, however, thinks that Josuke shouldn't sell himself short.
Josuke: He was so strong...And he didn't even have a Stand!
Jonathan: I think your healing power is more amazing than anything I can do, Josuke!
Not only that, but if paired with Lisa Lisa, she comments on how it feels to fight alongside the man who helped save her life as an infant.
Lisa Lisa: Being able to fight alongside you like this is a dream come true.
The ending of Story Mode shows the ending of Stardust Crusaders again, except that it's revealed that Kakyoin, Iggy, and Avdol are at a hospital in Cairo recovering, Polnareff offers to stay behind to keep watch of them as Joseph and Jotaro return to Holly in Japan. After the credits, we see a photo of each part, but with the formerly deceased (or in Fugo's case, absent) characters added in.
Jonathan and Dio about to face each other while Speedwagon holds an injured but alive William.
Joseph and Caesar fighting against Wamuu and Esidisi.
Josuke, Koichi, Okuyasu, and Shigechi hanging out at a cafe, with Kosaku nearby, with the implications he's the real Kosaku rather than Kira.
Team Bucciarati entering the Colosseum, including a non-undead Bucciarati, Fugo and Abbacchio, which also means that Fugo got into the boat and struck with his comrades this time.
Jolyne and her friends gathering for a group photo.
Johnny and Gyro fighting against THE WORLD Diego.
Jo2uke and Joshu talking with each other, actually getting along.
Lastly, the last photo shown is Polnareff, with Iggy, Kakyoin, and Avdol, waving to Joseph and Jotaro, who arrive at the airport to visit them.
The very last scene in the ending will also tug at the heartstrings. It shows Jotaro’s arrival in Morrioh during Part 4 which plays the same way as in the original. Except this time, he decided to bring a young Jolyne with him who is shown hugging her father, to which he gently pats her head.
While also a Tear Jerker, if Part 4!Jotaro defeats Kakyoin in a match.
Part 4!Jotaro: It's good to see you again.
Part 4!Jotaro: I won't forget you... from now on, either.
Part 4 Jotaro's interactions with Avdol as well. Avdol asks how old Jotaro has gotten since the end of Stardust Crusaders, and Jotaro quips that he sounds like his uncle or something. Of course, Avdol may as well be considered an Honorary Uncle to Jotaro, despite their rather hostile first encounter.
Let's not forget his interactions with Old Joseph. Despite berating him for cheating on his wife, Jotaro is at least happy to see his grandfather standing up right.
If Young Joseph and Kakyoin win a match.
Joseph: You're not half bad, Kakyoin! I hope I get to fight alongside you again!
Kakyoin: That wish will come true someday, Mr. Joestar.
Old Joseph doesn't recognize Part 1 Speedwagon nor his own younger self when first meeting them... but he knows immediately who Caesar is.
Old Joseph stepping in between his younger self and Caesar to prevent the argument that led to Caesar running off and getting himself killed. He lectures his younger self on thinking he knows more than he actually does at that age, and tells Caesar not to do anything risky to honor Baron Zeppeli's memory, lest he cause pain and guilt to his friends and family who are still living. Doubles as a massive Tear Jerker, especially to Battle Tendency fans. To make things sadder, Joseph knew exactly what to say to defuse the situation — indicating that he'd replayed that argument a lot in his head.
Team Old Joseph up with his son Josuke, and he'll say this, should Josuke fall in battle:
Old Joseph:Josuke... let me be a good father to you, just this once.
After a team-up with Polnareff and Old Joseph:
Polnareff:What a fight! That's my Mr. Joestar...
Polnareff petting Iggy's head once he's back to normal. However, Iggy, being as foul-tempered as he is, growls and chases after Polnareff like the old days.
When most characters see Joseph's attempted crossdressing disguise, they consider it either disgusting or laughable (or they fall for it). Jolyne, however, just advises him that he used too much makeup and joins him in a Noblewoman's Laugh when they win the fight.
Josuke and Giorno's team-up dialogue really offers something of a What Could Have Been if Jonathan and Dio had actually been able to become friends.
Giorno:I feel like you and I could defeat anyone who comes our way!
Josuke:I was just thinking the same thing, Giorno.
Speaking of Jonathan and Dio, Part 3 DIO makes it clear in some victory quotes that he's glad to fight alongside his adoptive brother and being given the opportunity to see him again should they team up. He's oddly polite, almost kind to him, which quite contrasts with Part 1 Dio's interactions with Jonathan.
DIO: If there truly exists a god that controls our fate, then having us meet up was one of his best plans yet!
Jonathan: Dio... Just as you once said, we were one and the same. I even feel like we have a bizarre sort of friendship.
As twisted as it sounds, DIO sounds oddly genuine when he thanks Jonathan for his body.
DIO: Your body has served me very well, JoJo.
Dummied Out dialogue of Part 6 Jotaro has some oddly heartwarming moments with Giorno. He warns Giorno that he won't allow him to follow a path that leads to grotesque evil like his father, but nevertheless has no issue putting his trust in him, something that Giorno himself is surprised by. Giorno even asks Jotaro to call him "GioGio". And if they win a match together...
Jotaro:I'm sure of it now... You're definitely a Joestar.
Giorno:...Mr. Jotaro.
In a match between Speedwagon and Lisa Lisa, he begs her to teach him hamon so he can help Jonathan and their friends fight. At the end, she tells him not to worry, since he can support them just the way he is.
The Pillar Men’s dialogue with Old Joseph is surprisingly heartwarming, with Wammu sincerely thanking Joseph for letting him fight a great warrior like him again, Esidisi confirming that age has not dulled Joseph’s strength, and even Kars is seemingly disappointed by how quickly Joseph has aged, thinking such a worthy foe deserved better than to be made a fool of by time.
Speaking of Kars, while he’s dismissive of the other Hamon users, he’s nothing but respectful to Jonathan.
Downplayed example: If Diavolo is paired with Trish, one of his possible win quotes has him remark that he had no need to fear Trish, since her Stand doesn't contain any hint that could be used to deduce King Crimson's abilities. This heavily implies that, unlike what happened in canon, Diavolo decided to ignore his paranoia and spare Trish.
, implying that Jotaro is making a better effort to be a good father in this new timeline.Jotaro: Stay close to me. You know, I wanted you to stay at home with your mom to watch over the place. I only brought you along so you'd stop bawling and throwing tantrums. Just keep quiet until my business is done. Got it? Explanation
