Well, if Naruto becomes the boogie man in the fanfiction, it could mean that he has some sort of dark or mysterious transformation. He might be feared by the villagers who once shunned him. This could lead to a whole new set of adventures where he has to either embrace this new identity or find a way to reverse it. Maybe he uses this new form to fight stronger enemies more effectively, taking advantage of the fear factor.
In this fanfiction, Naruto might use his new 'boogie man' status to play pranks on his friends in a more stealthy way. For example, he could use his newfound abilities to move around unseen and startle them at unexpected moments.
Perhaps in this fanfiction, Naruto becoming the boogie man gives him unique powers related to fear and illusion. He could enter people's nightmares and manipulate them, which could be used for good or bad. If used for good, he might help people face their fears. But if misused, it could lead to chaos. Also, his relationships with his comrades like Sasuke and Sakura would be greatly affected. Sasuke might be more intrigued or even more wary of Naruto, and Sakura might be scared at first but then try to understand and help Naruto control this new side of him.
His friends would be the most affected. For instance, Shikamaru, who is used to Naruto's normal self, would have to adjust to this new and somewhat spooky Naruto. He might have to come up with new strategies to deal with Naruto's new abilities and behavior.
Well, it could be that the author took the concept of Naruto and twisted it to make him into the 'boogie man'. Maybe Naruto has some dark power or is involved in some spooky events. It could be a really interesting take on the Naruto character, exploring a side of him that is far from the usual heroic image we have of him. For example, he might be seen as a threat by the villagers in this fanfiction, instead of a hero like in the original series.
You could try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). They have a large collection of Naruto - related fanfictions and there's a chance you'll find 'naruto is the boogie man' there.
Perhaps there's a powerful artifact in the Naruto world that has the ability to transform people into different superheroes from other universes. Naruto stumbles upon this artifact and, not knowing what it does, activates it and is transformed into Ant - Man. He then has to figure out how to use his new powers like shrinking, communicating with ants, and growing back to normal size while still being a ninja.
No, the boogie man in the story is not real. It's a fictional creation used to frighten or entertain.
Well, if Naruto becomes the Kyuubi in the fanfiction, he would likely have an overwhelming amount of power. He might be able to defeat his enemies with ease. But he would also face the struggle of controlling such a powerful and wild force inside him. Maybe his friends would be both in awe and a bit scared of him at first.
Well, if Naruto becomes Mikoto, he would be a female in the body of Mikoto. He could bring his own values and experiences as Naruto. This could potentially change the relationship dynamics within the Uchiha clan. He may try to bridge the gap between the Uchiha and the rest of the village in a way that Mikoto might not have been able to do in the original story due to her own limitations and the circumstances of the time.
He might gain new and unique powers. For example, his regular jutsu could be combined with prototype - like abilities such as enhanced physical strength and the ability to quickly adapt to any situation.
In this kind of fanfiction, Naruto might gain even more incredible power. He could have enhanced physical abilities like super strength and speed, as well as new jutsu related to the bijuu's nature. For example, if he becomes the Nine - Tails bijuu, he might be able to use the Tailed Beast Ball more effectively and on a larger scale. His appearance might also change, perhaps taking on some of the characteristics of the bijuu, like fox - like features if it's the Nine - Tails. This could lead to new relationships and dynamics with other characters. His friends might be in awe of his new power, while his enemies would be even more fearful.
Well, in fanfiction, anything is possible. Maybe Naruto gets transported to the Sekirei world through some sort of magic or a strange portal. This could be the start of his journey to become a Sekirei. It could also be due to a curse or a wish gone wrong that transforms him into a Sekirei - like form.