Naruto's character would develop in a very different way. He might become more confident, almost to the point of cockiness at first. But then he would likely realize the weight of his power. He would have to learn to control it, which could be a new form of character growth for him.
Naruto's character would experience a major shift in development. His identity as a ninja who has to struggle and fight hard would be challenged. Initially, he might use his One Punch Man - like powers recklessly. But as the story progresses, he would understand that power isn't everything. He could start to value other things more, like his relationships and the well - being of others. His character arc could involve him learning to use his power responsibly and becoming a more well - rounded, not just a physically powerful, individual. He would have to re - evaluate his ninja way in the face of this new and overwhelming power.
If Naruto had One Punch Man's powers in a fanfiction, his character development would be complex. He has always been about hard work and perseverance. With this new power, he could easily get lazy or rely too much on his brute strength. However, if the story is well - written, he could also learn humility. He might see that having all this power doesn't solve all problems, like emotional and political issues in the ninja world. He would have to grow in other aspects, such as wisdom and diplomacy.
Naruto's character would likely become more carefree. Luffy's powers often come with a sense of fun and adventure, and Naruto might adopt some of that. He'd be more likely to take risks and approach situations with a more light - hearted attitude.
He'd become more complex. Naruto is already a determined character, but with Rogue's powers, he'd have to deal with the moral implications of absorbing others' powers. This would add depth to his character.
His character would become more confident. With Sinbad's powers, Naruto would have new ways to face challenges, which would boost his self - assurance.
Deku would likely become more confident in his abilities. In the One Punch Man universe, he'd see Saitama's nonchalant attitude towards fighting and might start to adopt a similar mindset. He'd also have to adapt to the different types of villains. Since One Punch Man villains are often very strange and powerful in unique ways, Deku would need to be more creative with his strategies.
His relationships would change a great deal. His friends might feel a bit overshadowed by his new power. For instance, Sasuke might feel even more compelled to compete with Naruto, but also realize the futility of it. His relationship with Sakura could become a bit strained as she might be in awe and a bit intimidated by him now.
Naruto's character would likely become more complex. He'd have to learn to control the new arrancar powers, which could lead to some internal struggles. He might become more confident, or perhaps a bit more isolated as he tries to understand his new abilities. His values might also shift a bit as he experiences the different nature of arrancar powers compared to his regular ninja skills.
Naruto's character would experience a major transformation. With the Rikudou Sennin powers, he'd have a deeper understanding of the ninja world's history and his place in it. The Kyuubi's presence would always be there, but he'd be in more control, which could make him more self - assured. The Rinnegan would bring a sense of mystery to his character. He'd be constantly exploring the new abilities it gives him, and this exploration would shape his personality. He might become more focused on protecting the entire ninja world rather than just his village, as he realizes the magnitude of his new powers.
If Naruto had One Punch Man's powers in a fanfiction, he would be ridiculously overpowered. He could probably defeat any of his foes with a single punch. His fights would become very one - sided, and it might change the entire dynamic of the Naruto universe. For example, he could easily take on the Akatsuki single - handedly without much effort.
His character could become more confident. Having cosmic powers would give him an edge in battles and in general life. He might start to take on more global or even universal threats, expanding his role from just protecting New York City. His self - identity might also shift a bit as he is no longer just a normal guy with spider - like abilities but someone with cosmic - level powers.
Saitama's relationships would be completely upended. Friends like King would no longer be able to approach him casually. And his relationship with the citizens would change from protector to feared being. His new monstrous nature might also attract other villains and monsters, who could either try to follow him or challenge his new - found power.