If Naruto becomes like Joker in fanfiction, it would be a really strange and interesting transformation. Naruto is known for his positive and determined nature, while Joker is chaotic and unpredictable. Maybe Naruto would start to question the values of his village and act in more devious ways. His friends might be very confused and try to bring the old Naruto back.
If Naruto becomes a Joker fan in the fanfiction, his new look could be really different. He would probably ditch his orange jumpsuit for something more in line with the Joker's style. A long, tattered purple coat perhaps, with some dark makeup around his eyes to give him that menacing look. His shoes could be replaced with some clown - like shoes, and he might carry around a few 'joker - ish' accessories like a deck of cards or a fake flower that sprays water. His overall appearance would be a blend of his ninja - like physique and the Joker's flamboyant and chaotic style.
The plot could start with Naruto being disillusioned with the shinobi world. He might see the hypocrisy and the never - ending cycle of war. This leads him to embrace the Joker's ideology of chaos. He could start by targeting the political figures in the Hidden Leaf, causing unrest. His friends would be shocked and try to stop him, but he would be too far gone.
One way Naruto could be like Joker is in their complex personalities. Naruto starts off as an outcast in his village, much like how Joker is an outcast in Gotham society. Naruto has a wild and unpredictable side to him which can be compared to Joker's erratic nature. Also, both characters are on a kind of journey of self - discovery, though in very different worlds and with different goals.
One way Naruto could be like the Joker in fanfiction is in their appearance transformation. The Joker has his distinct look with his pale face and wide - grin makeup. In fanfiction, Naruto could be given a similar kind of transformation where his appearance takes on a more menacing or chaotic look. His behavior could also change to match this new look, becoming more erratic and difficult to predict, just like the Joker.
Well, one way it could work is if Naruto's world somehow got merged with the dark and chaotic world of the Joker. Maybe Naruto, after facing so much pain and loss in his own world, starts to adopt the Joker's nihilistic views. He could use his ninja skills in a more unhinged way, like the Joker uses his chaos-creating abilities.
Well, he might start to have a more unpredictable nature. Maybe he'd play pranks on his friends in a more extreme and unhinged way, like the Joker's chaotic actions.
In this fanfiction scenario, Naruto's transformation into a Joker fan could lead to some significant changes. Naruto has always been about friendship and protecting his village. But as a Joker fan, he might start to see the flaws in that system. His new - found admiration for the Joker could make him view the power structures in the ninja world as something to be toyed with. He could use the Joker's unpredictability to his advantage in battles, confusing his opponents. However, this would also put him at odds with his friends and the village elders who uphold the traditional values.
Well, the plot could involve Naruto taking on the characteristics of the Joker while having some sort of relationship with the female Kyuubi. Maybe Naruto, in his new Joker - like persona, would use his chaotic nature to protect the Fem Kyuubi from threats in the Naruto universe. He could also use his newfound unpredictability to outwit his enemies in a different way than he did as his normal self.
Batman would definitely be a main character. He's the Joker's arch - nemesis, and when the Joker becomes a baby, Batman might be the one who first discovers him. He'd be in a moral dilemma about what to do with this baby version of his greatest enemy.