Well, his metal skin could enhance his defense greatly. Enemies' attacks like kunai stabs or basic jutsu blasts might be deflected or absorbed more easily. It could also add weight to his punches, making his physical attacks more powerful.
Well, it could be that he got it as a gift from some super - advanced ninja technology group in the fanfiction world. Maybe they saw his need for an extra weapon or tool during battles and decided to equip him with a metal arm.
One special ability could be enhanced strength. The metal arm might be able to deliver much more powerful punches than his normal arm, allowing him to break through tough defenses more easily.
There could be. Given the creativity of fanfiction writers, they might find interesting ways to blend the Naruto universe with the Sonic universe, specifically with Metal Sonic. It could involve Naruto being transported to the Sonic world and having an encounter with Metal Sonic, or perhaps some sort of power - related connection between Naruto's abilities and Metal Sonic's characteristics.
Yes, in fanfiction, Naruto can be given the ability to manipulate metal. Fanfic writers often like to give characters new and unique powers for the sake of creativity and exploring different storylines. It could add an interesting dynamic to his combat skills, allowing him to control metal weapons of his enemies or create his own metal constructs for offense or defense.
Yes, there might be. The Harry Potter fandom is vast and diverse, and fans often come up with creative and unique concepts like this for their fanfictions. There could be a writer who decided to give Harry Potter a metal arm in their story for various reasons, perhaps as a result of a battle injury or some magical - mechanical experiment gone wrong.
One idea could be that Metal Sonic somehow ends up in the Naruto universe. He could be mistaken for a strange new type of summon or a powerful weapon. Naruto, being curious, might try to befriend it or figure out its powers.
Naruto himself is of course very popular. He's often the central character in these fanfictions, with his story being reimagined in the context of the metal - related themes. Sasuke is also quite popular. His rivalry with Naruto can take on new twists in a metal - based Naruto universe. Sakura might also be a prominent character, perhaps with her medical skills being combined with metal - based technology in some stories.
One idea could be that Metal Sonic somehow gets transported to the Naruto universe. He might be mistaken for a strange new type of summon by the ninja. Metal Sonic could then use his speed and robotic abilities to cause chaos or, alternatively, befriend some of the ninjas who are intrigued by his technology.