In a Naruto x Star Wars Rebels fanfic, the two universes could be merged by exploring the idea of different cultures. The diverse cultures in Naruto, like the Hidden Villages, could be compared to the various planets and species in Star Wars. For instance, the Hidden Leaf Village could be seen as a planet in the Star Wars universe. The values and traditions of each could be shared. The Rebels' fight for freedom could be paralleled with the ninja's fight for their villages. This would allow for a deeper exploration of themes such as loyalty, friendship, and the struggle against oppression in both universes as the characters from Naruto and Star Wars Rebels interact and influence each other.
One way to merge the two universes in fanfiction could be through a plot device like a dimensional rift. For example, a Sith Lord could accidentally open a rift that leads to Gotham City. This would bring the dark and brooding atmosphere of The Dark Knight into the Star Wars universe. Batman might find himself in a world of lightsabers and the Force, and his detective skills could be put to the test in a whole new way.
Many fanfictions also blend the storylines. The fight against the Empire in 'Star Wars Rebels' can be compared to the fight against Sauron in 'Lord of the Rings'. The rebels' struggle for freedom and justice can be seen as similar to the Fellowship's quest to destroy the One Ring. This way, the two universes are combined in a way that creates a whole new and exciting story.
You could also have a character who has a connection to both universes. Maybe a half - Naruto - half - Angeloid being. This character would act as a bridge between the two worlds. They would introduce the concepts of one universe to the other. For example, they could teach the ninja in Naruto's world about the advanced machinery of the Angeloid universe and at the same time show the Angeloid the importance of things like honor and loyalty in the ninja world. As this character moves between the two universes, the two start to blend together more and more.
In a Star Wars fanfic with Superman, perhaps he could be a long - lost Jedi from a different galaxy. His Kryptonian biology gives him an edge similar to the Force. His heat vision could be like a more powerful version of a lightsaber beam. He could team up with Luke Skywalker, and they could learn from each other. Luke could teach him about the ways of the Force, and Superman could show Luke new ways of using his powers in combat.
One way to blend them is through character crossovers. For example, imagine Naruto characters having the Force. Naruto could be a Jedi with his strong willpower and determination being similar to the Jedi way. His shadow clones could be used in unique combat situations against Sith Lords. Another aspect could be the settings. Konoha village could be like a planet in the Star Wars universe, with its own political intrigue and power struggles, just like the various planets in Star Wars.
Kakashi Hatake could also be in the running. His Sharingan and vast array of ninja techniques make him a formidable opponent. In the Star Wars side, Ezra Bridger has a strong connection to the Force. But Kakashi has more combat experience and a more diverse set of skills. If they were to face off, it would be an interesting battle. And of course, Naruto's ability to inspire and bring out the best in others could also be considered a form of power, which could tip the scales in his favor in this colliding universes scenario.
It could be Naruto himself. His ability to tap into the Nine - Tails' chakra gives him an incredible power boost. In the merged universe, he might be able to use the Force as well, which would make him an unstoppable force. With his speed, strength, and now potentially the power of the Force, he could easily defeat most opponents.
One way to merge them could be through character crossovers. For example, a character from Skyrim like the Dragonborn could find themselves in the world of Game of Thrones. They might use their unique abilities, such as Thu'um, to influence the power struggles in Westeros. Maybe they could form alliances with certain houses, or use their combat skills to fight in the battles there. Another aspect could be the introduction of Skyrim's magic system into the Game of Thrones universe. Spells like healing or firebolts could change the dynamics of warfare and politics in Westeros.
Typically, it blends the universes by having characters cross over. For example, Naruto might end up in the Star Wars galaxy or vice versa with Revan in the Naruto world. Their powers are then compared or combined. Naruto's chakra system could be related to the Force in some ways.
In fanfiction, it could be that the technology of Gundam Seed Destiny is introduced into the Naruto world. The ninja villages could start using Gundam - like mechas in their battles. This would completely change the power balance. The shinobi would need to adapt to this new form of warfare. Also, the pilots from Gundam Seed Destiny could find themselves in the Naruto world and learn about chakra, and they might try to combine their piloting skills with chakra - based attacks.