Baby Naruto in fanfiction could be presented as being more openly affectionate towards others. Since he doesn't have the weight of the world on his shoulders yet, he's free to be a loving and cuddly baby. He might run up to every villager and try to give them hugs. Meanwhile, baby Sasuke might be more hesitant in his interactions. He's still curious about the world around him, but his Uchiha pride is already there in a more childlike form. He might be more competitive with other kids, even at a very young age, which is different from the more complex and reserved Sasuke in the original series.
As babies in fanfiction, Naruto might be more subdued. In the original series, Naruto is very loud and rambunctious, but in fanfiction as a baby, he could be more quiet, perhaps because of some early trauma or a different upbringing. He may still have his kind heart, but show it in a more reserved way.
In fanfiction, Naruto might be portrayed as more emotionally vulnerable around Sasuke. In the original series, he was always very boisterous and positive, but in fanfiction about their brotherly relationship, he could show his insecurities to Sasuke more openly. For example, he might talk about his fear of not being good enough as Hokage. Sasuke, on the other hand, could be shown as more patient. In the original, he was often brooding and impatient, but here he listens attentively to Naruto's concerns.
In fanfiction, Dark Fem Sasuke might be even more brooding and vengeful than in the original. Her femininity could add a different layer of complexity, like she might use her charm in a manipulative way to get what she wants. Naruto, on the other hand, could be more determined to reach out to her, showing his growth in understanding those with a darker side. He may be less naive and more strategic in how he approaches her.
Well, in chibi fanfiction, Naruto is often depicted as an even more energetic ball of sunshine. His love for ramen might be shown in a cuter, more obsessive way. Sasuke, though still having his serious demeanor, may be more approachable. His determination to become stronger could be intertwined with his friendship with Naruto in a more light - hearted manner. For instance, instead of the deep - seated angst in the original, his drive to be better might be because he wants to keep up with Naruto's growth in a friendly way.
Some fanfictions might show Ashura's power as being able to heal not just physical wounds but also emotional and mental traumas. This is a departure from the original series. As for Indra, his power could be shown to have a corrupting influence on the environment. For instance, when he uses his Sharingan to its fullest, the area around him starts to wither as if his power is draining the life force from the surroundings. This is a much more extreme take on his power compared to the original Naruto series.
In the baby Sasuke Naruto fanfiction, if Naruto was raised by a family of scholars, he could develop a more intellectual side early on. He might still be loud and energetic, but also have a love for learning and strategy. Sasuke, on the other hand, if he was part of a big, warm family, could be more outgoing and less cold - hearted. His competitiveness could be more about friendly rivalries rather than a deep - seated need to prove himself.
In fanfiction, Windblade might be shown as more vulnerable. While in the original series she's a strong leader, in fanfiction she could have moments of self - doubt, especially when it comes to her relationship with Chromia. For example, she might worry about whether she's being a good enough friend.
In some fanfictions, Naruto's childhood self can be even more naive and innocent compared to the original. He might be more openly vulnerable about his feelings of loneliness. For example, he could cry more easily when Sakura accidentally says something that hurts his feelings. Sakura, on the other hand, may be portrayed as more motherly towards Naruto in her childhood in fanfictions. In the original, she was mainly focused on Sasuke, but in fanfiction, she might be the one to comfort Naruto more often.
In the fanfiction, Evil Naruto might be more cynical and power - hungry. He could have lost his belief in the values of the Hidden Leaf. Gaara, on the other hand, might be more cold - hearted and less likely to show any mercy, as opposed to his more complex and evolving personality in the original series.
In some fanfictions, Naruto, Hinata and Sasuke's relationships can be drastically different. Naruto and Hinata could start a relationship based on a shared interest in a new form of ninjutsu that Hinata discovers. This brings them closer together in a way that wasn't shown in the original. Sasuke, on the other hand, could be forced to live with Naruto and Hinata for a period of time due to some village regulations. During this time, he sees their relationship up close and it makes him re - evaluate his own ideas about relationships and loyalty. He might start to see the value in what Naruto and Hinata have and become more protective of them.