A symbiote can greatly enhance Naruto's power. It could provide him with increased speed, strength, and durability. Moreover, it might influence his fighting style. Instead of just relying on his ninjutsu and taijutsu, he could start using more symbiote - inspired attacks, like shooting out tendrils made of chakra - infused symbiotic matter. This would make him a more versatile fighter in the fanfiction world. And his relationship with the symbiote could also add an internal struggle as he has to balance his own values with the sometimes more primal nature of the symbiote.
The symbiote can change Naruto's physical appearance. For example, it might give him a more menacing look with some black markings similar to traditional symbiote looks in other stories. This can also affect how others perceive him, making some fear or be more cautious around him.
The symbiote could make Naruto's relationships more complicated. For her friends, they might be initially scared or distrustful of the new - looking Naruto with the symbiote. For example, Sasuke might see her as a threat now. But as they learn that the symbiote is actually helping Naruto control the Kyuubi, they might slowly accept it.
Hinata might interact with symbiote - Naruto with a mix of caution and curiosity. Since Naruto is different with the symbiote, she would be careful at first. But her love for Naruto would also make her curious to understand what the symbiote does to him.
The Venom symbiote would transform Naruto's abilities in a big way. Physically, he'd be on a whole new level. His strength would be enhanced to the point where he could easily break through solid objects. His speed would be like a blur, allowing him to quickly close the distance between him and his enemies. The symbiote might also affect his chakra control. Maybe it could help him store more chakra or use it more efficiently. Additionally, Naruto could gain the symbiote's ability to sense danger, which would be extremely useful in his dangerous ninja life. It would make him more aware of incoming attacks and able to react more quickly.
The symbiote can make the story darker. Since it has a somewhat malevolent nature, it can bring out more of the edgier side of Spider - Man. For example, Spider - Man might become more aggressive in his fight against villains, which would change the overall feel of his battles.
She could also introduce new villains. Maybe there are other symbiotes that are after her, or her presence in the Spiderman world attracts enemies from her own origin. This would expand the range of threats in the fanfiction and force Spiderman and his allies to adapt to new types of challenges.
The symbiote could make Naruto's ninja way more about adaptation. Since the symbiote brings new physical abilities, Naruto might need to adapt his fighting style. His ninja way of never giving up could be enhanced as he now has to overcome not only his normal challenges but also the challenges of controlling the symbiote. For example, if the symbiote has a weakness to certain elements, Naruto would have to find ways to work around that while still staying true to his beliefs.
He might use his intelligence and knowledge of the symbiote's weaknesses. For example, if the symbiote has a weakness to high - pitched sounds, he could use some sort of sonic device to draw it out and then capture it. Or he could try to appeal to the part of the symbiote that once had a bond with him, by showing it that they were better together than apart.
Initially, the relationship could be rocky. Naruto, being used to his own way of life, might find it difficult to adjust to the presence of the fem symbiote. However, as the symbiote reveals its powers and shows that it can help Naruto in his struggle against neglect, they begin to form a connection. The symbiote may start to feel empathy for Naruto's situation, and Naruto may come to see the symbiote as a partner. As they face more and more difficulties together, such as fighting against those who still look down on Naruto, their relationship evolves into a deep and unbreakable bond of mutual understanding and support.
Well, sometimes in fanfiction, Naruto changes his attitude when he discovers a new power within himself. Realizing that this power comes with great responsibility, he could become more solemn and focused. He might start to view his friends and enemies in a different light, perhaps seeing the potential for good in his foes and being more cautious about involving his friends in dangerous situations.
Naruto could develop a new sense of determination. He might be determined to not let Orochimaru's experiments define him. Instead, he could use what has happened as a motivation to become stronger in his own way. He may also start to study more about the type of experiments Orochimaru was doing, not to replicate them, but to find ways to counter any future threats related to that kind of science.