Naruto might use his Rasengan to take out large groups of zombies. It would be a powerful attack against the undead hordes.
In this Naruto - Dead Rising fanfiction, Naruto could team up with some of the survivors in the Dead Rising world. They would be initially skeptical of his strange powers but soon realize his value. Naruto could teach them some of his ninja training techniques to help them better defend themselves against the zombies. And in turn, they could teach him about the unique aspects of the Dead Rising world, like how to find and use the best weapons against the undead.
He could have the ability to raise the dead shinobi to fight for him. This would give him a huge advantage in battles. For instance, he could bring back the likes of Minato or Jiraiya to assist him in crucial fights.
In some fanfiction concepts, Naruto and Sakura might control the dead through powerful jutsu. Maybe they discover an ancient forbidden technique. For example, they could find a scroll that teaches them how to manipulate the souls of the dead. This could be a result of their continuous exploration and growth in the ninja world.
In this fanfic, Naruto and Amber could have different goals at first. Naruto might be on a quest to find a way back to his own world, while Amber is trying to rescue her family or something. However, as they face the common enemy of the zombies, they realize that they need to work together. Naruto's chakra - based abilities could be a huge asset in dealing with the powerful zombies. For example, his Rasengan could be used to take out large groups of zombies at once. Amber, on the other hand, could be the one with the knowledge of the layout of the area in Dead Rising 2, guiding Naruto through the dangerous streets and buildings.
Definitely Hinata. Her love for Naruto is well - known, and in a post - apocalyptic world like Dead Rising, she would be by his side. Sakura could also join the harem. She has a complex relationship with Naruto and this new setting could change things. Then there's Temari. She's strong and independent, and in this new world, she might find herself drawn to Naruto. Karin, with her unique abilities, could also be part of the group of female characters in the harem.
One plot idea could be that Naruto finds himself in a post - apocalyptic world of Dead Rising. He starts to gather survivors and among them are a group of girls who develop feelings for him. Maybe they have to fight off hordes of zombies together while Naruto tries to keep everyone safe. Another idea is that Naruto has some unique abilities in this new world that draw the attention of different female characters, and they form a harem as they rely on him for survival.
In such a fanfiction, the Hokage might be consumed by grief. They could vow to find out who was responsible for Naruto's death and seek revenge. It could also lead to a dark period in the Hidden Leaf Village, with the villagers losing hope as Naruto was seen as a symbol of strength and unity.
He might try to change certain events. For example, he could prevent some of the tragedies that occurred in the original story. Maybe he would stop the Uchiha massacre by warning the clan or finding a way to resolve the conflict between the Uchiha and the village leadership.
If in the fanfiction everyone believes Naruto is dead, it would have a huge impact. Firstly, the balance of power in the ninja world would shift. Allies of Konoha might feel less secure. Secondly, the emotional toll on his loved ones would be immense. Hinata would be devastated, and she might struggle to raise Boruto alone. Thirdly, the story could take a turn where Naruto is actually alive but in a different dimension or held captive, and the fanfiction could then focus on the journey to bring him back.
Kakashi could be another important character. As a mentor figure, he might be guiding the younger generation through the difficult times after Naruto's death, using his experience and wisdom to keep the village stable.