A common scenario is Naruto using his friendship - power. His bond with his friends gives him extra strength, and he uses this emotional power to overpower Sasuke. Another is that Naruto discovers a new power within himself during the fight, like a hidden form of the Nine - Tails' chakra.
In some fanfictions, Naruto might defeat Zabuza through new jutsu. For example, he could develop a unique shadow clone variation that overwhelms Zabuza's water jutsu. Maybe he combines his Rasengan with some unexpected element, like wind chakra in a new way that Zabuza can't counter.
One common element is Naruto's growth. He usually has to reach a new level of power or understanding to defeat Madara. For example, he might gain a new jutsu or a deeper connection with his inner chakra.
Another possibility is that Naruto could defeat Kakashi if the latter was in a weakened state. Maybe Kakashi had just come out of a tough battle with other powerful enemies and was low on chakra. Meanwhile, Naruto was at his peak, full of energy and ready to fight. In this situation, Naruto's sheer determination and his own strong abilities could lead to his victory.
In a more psychological approach, Naruto could have grown so much as a character that he no longer fears Kakashi's reputation. This new - found confidence could change the dynamics of their fight. He might be able to read Kakashi's moves better and anticipate his attacks. Combined with his own ever - improving skills, Naruto could defeat Kakashi in this state of mental superiority.
There are fanfictions where Naruto teams up with other powerful characters like Jiraiya. Together, they come up with a plan to trap Orochimaru and then Naruto delivers the final blow. Naruto might use his Sage Mode skills, if he has them in that particular fanfiction, in combination with Jiraiya's knowledge and power to outwit and defeat Orochimaru.
Well, one way Naruto could defeat Iwa in fanfiction is through strategic alliances. He could team up with other ninja villages or powerful individuals who have a grudge against Iwa. Together, they could plan elaborate attacks and outwit Iwa's military strategies. Also, Naruto's ability to inspire others might lead his allies to fight more bravely, giving them an edge in the battle.
One popular 'naruto defeats madara fanfiction' is 'The Final Confrontation'. In this story, Naruto has mastered a new jutsu that gives him an edge over Madara. It's really exciting as it shows Naruto using his quick thinking and newfound power to outwit Madara at every turn.
Maybe Naruto discovers a hidden scroll that has a spell or technique specifically for dealing with paperwork. He then uses this new - found knowledge to make all the paperwork disappear or transform into something more manageable, like a single small scroll that contains all the important information in a condensed form.
Well, one way could be if Naruto has some new, super - powerful jutsu that he's developed. Maybe he's found a way to combine his Sage Mode with his Nine - Tails chakra in a completely new and unexpected way that gives him an edge over Hashirama.