Well, it could be really cool. Naruto's ninja skills combined with Vegeta's Saiyan power would make for an extremely powerful being. Maybe they'd have Naruto's ability to create multiple clones and Vegeta's energy blasts at the same time. They could also inherit Naruto's determination and Vegeta's pride, which would make for a very interesting personality mix.
The power level would be insanely high. Naruto already has access to a huge amount of chakra, especially in his later forms like Six Paths Sage Mode. Vegeta, on the other hand, has his Super Saiyan forms which multiply his power exponentially. When fused, they would likely have a power level that could easily rival some of the most powerful beings in both universes.
It really depends on the context. If it's a physical strength battle, Vegeta might have the upper hand initially due to his Saiyan strength. But Naruto has incredible stamina and the ability to tap into the Nine - Tails' power. So in a long - drawn - out fight, Naruto could potentially outlast Vegeta.
The power balance would be greatly affected. If fanfiction gives Naruto some overpowered abilities like instant teleportation across any distance, it would make many of his battles much easier. Enemies that were once a threat would no longer be so.
One great Vegeta Naruto fanfiction is 'Vegeta in the Naruto World'. It's interesting as it shows how Vegeta's combat skills and prideful nature would interact with the Naruto universe. He has to adapt to the ninja world's unique powers and politics.
In such a fanfiction fusion, Naruto might gain some of Bardock's battle instincts. Bardock was a fierce Saiyan warrior, so Naruto could potentially have an even greater edge in combat. He might also inherit some of Bardock's Saiyan traits, like enhanced strength and speed at a more fundamental level. This could make him even more formidable against powerful foes in the Naruto universe.
Well, Naruto might gain some really strange abilities. Cell can regenerate and absorb energy. So Naruto could potentially have super - enhanced healing powers. He might also be able to absorb chakra from others like Cell absorbs energy. This could make him extremely powerful in battles, being able to quickly recover from injuries and constantly boost his power.
In this fanfiction plot, a powerful sorcerer or some sort of interdimensional being could be the cause of the fusion. The fused Naruto - Goku would have an insane amount of power. They could travel at super - fast speeds like Goku and also use shadow clones like Naruto. Their power level would be off the charts. They might end up in different parts of the new world they're in, trying to find each other and figure out what happened, all while being chased by enemies who want to study or destroy their new form.
The appearance of a Naruto - Ichigo fusion in fanfiction would likely be a blend of their features. Maybe he would have Naruto's spiky hair color but with Ichigo's hair style. His eyes could be a mix of Naruto's blue and Ichigo's brown. And he might wear a combination of their outfits, like Naruto's orange jumpsuit with some elements of Ichigo's Soul Reaper robes.