Well, in this kind of fanfic, usually there would be intense battles. Naruto is extremely powerful with his various jutsu like Rasengan. The Shinobi Alliance also has a lot of strong ninjas. Maybe the story would focus on Naruto having to face the combined forces of the alliance due to some misunderstanding. It could also explore Naruto's growth and how he tries to resolve the conflict without causing too much harm.
Naruto would be devastated. He has always idolized his father, so being betrayed by him would shatter his world. At first, he might be in denial, not wanting to believe that Minato could do such a thing.
Well, Minato being the calm and collected type, would probably approach reading Naruto fanfiction with an open mind. He might find some of the stories that depict his heroics in new and interesting ways quite fascinating. Kushina, on the other hand, would be more vocal. She'd either love the fanfiction that shows her as a loving mother and strong kunoichi or be a bit critical if it doesn't match her self - image. For example, if a fanfiction portrays her as too weak, she'd be likely to scoff at it. But overall, they'd both enjoy seeing the different ways the fans have imagined their lives.
Well, Minato might be proud to see how his son Naruto has been portrayed in the Naruto Shippuden fanfiction. He could also be impressed by the creativity of the fans in coming up with new storylines. Kakashi would likely enjoy reading different takes on his own character and the battles he's been in. Rin would probably be excited to see how her character has been explored in different ways, whether it's her relationship with Kakashi or her role in the overall story. Obito might have mixed feelings. He might be angry if the fanfiction misrepresents his motives, but also intrigued if it offers a new perspective on his journey.
One possible plot twist could be that the real enemy is secretly manipulating the Shinobi Alliance to fight Naruto. So Naruto has to not only defend himself but also figure out who is behind it all. Another could be that Naruto discovers a hidden power within himself during the fight that changes the course of the battle.
The plot should be engaging. It could add new twists to the Naruto vs Pain battle. Maybe introduce some new jutsus or strategies that make the fight even more exciting. Also, good fanfictions in this category usually have a good balance between action and the emotional aspects of the characters.
A mashup of 'Pulp Fiction' could be a creative combination. For example, it could be a musical mashup that combines the iconic soundtrack of 'Pulp Fiction' with other music genres. Maybe some DJ has blended the surf - rock and funk tunes from the movie with modern electronic beats to create a unique auditory experience.
Minato and Kushina's reactions could vary widely. Minato, being a strategic thinker, might initially be skeptical about how well the two very different universes of Naruto and RWBY can be combined in fanfiction. But as he reads on, he might appreciate the creativity involved. Kushina, with her fiery personality, could be excited or even a bit outraged if the fanfiction takes too many liberties with the Naruto characters she loves. She may also find it interesting to see new adventures for Naruto and his friends in this RWBY - inspired setting.
It's really hard to say. Minato is extremely fast with his Flying Raijin and is a very intelligent fighter. But Naruto has an incredible amount of chakra, his Sage Mode, and his Six Paths powers. If Naruto can get close enough to Minato, his brute strength could overpower Minato. However, Minato's speed and strategic mind might keep Naruto at bay.