In a 'Big Hero 6' and 'Inside Out' crossover fanfiction, perhaps Riley visits San Fransokyo. During her visit, she witnesses an accident that Big Hero 6 is responding to. The chaos and destruction make Sadness start to surface strongly in her. Baymax senses her distress and tries to help her. This leads to the team inviting Riley to their lab to cheer her up. Inside their lab, the emotions are fascinated by all the high - tech gadgets and start interacting with them, causing some comical and unexpected situations as they blend the two very different worlds of technology and emotions.
A cool plot for the crossover fanfiction could be that a new villain emerges who has the power to manipulate both technology and emotions. This villain targets San Fransokyo and Riley's mind. Big Hero 6 teams up with the emotions inside Riley's head to fight this common enemy. Hiro and his friends use their technological skills, while the emotions provide their unique understanding of human behavior and motivation. For example, Anger could give them the extra push to be more aggressive in their fight, while Joy could keep their spirits high during difficult times.
Perhaps there's a glitch in Baymax's system that causes him to project Riley's emotions as holograms. Hiro is confused at first but then realizes that these emotions are from someone else. They track the source of the connection and end up in Riley's mind. There, they find that the emotions are in chaos because of the sudden link to Baymax. The Big Hero 6 characters use their skills to help the Inside Out characters restore order. Hiro and Baymax help Joy understand how to better manage the positive emotions while the rest of the team helps the other emotions like Sadness not feel so left out or misunderstood.
One possible plot could be that the Big Hero 6 team is working on a new project in San Fransokyo when a strange series of crimes start to occur. These crimes seem to involve some sort of advanced technology that is out of this world. Spider - Man, who is on a school trip to San Fransokyo, senses that something is wrong. He starts to investigate on his own. Eventually, he crosses paths with the Big Hero 6. At first, there's some misunderstanding and a bit of a scuffle as they don't know each other. But when they realize they are after the same bad guys, they team up. Hiro figures out a way to integrate some of Spider - Man's web - slinging tech into Baymax's systems for a new attack mode, and together they take on the villain who is trying to use the stolen tech to create a portal to another dimension.
A plot might involve a villain who has stolen some of Syndrome's old tech and is using it in combination with the technology from Big Hero 6's universe. The Incredibles and Big Hero 6 team up to track down this villain. Frozone could use his ice powers to freeze some of the overheating tech created by the combined bad - guy tech. Honey Lemon's chemical - based gadgets could be used to counteract some of the effects of Syndrome's old inventions. And Jack - Jack, with his multiple powers, could provide some unexpected solutions and comedic relief during their adventure.
A great plot could be that there is a threat that is causing chaos in both the Naruto world and the Big Hero 6 world simultaneously. The two groups meet while investigating the source of this threat. Naruto, with his determination and strong will, would inspire Hiro to be more confident in himself. They could combine their unique abilities. For example, Naruto could use his shadow clone jutsu to help Big Hero 6 in a large - scale battle, while the technology of Big Hero 6, like Fred's suit, could be used to give Naruto an edge against certain enemies in his own world.
The interaction between the characters would be full of surprises. Consider Baymax and Joy. Baymax is all about helping and healing, and Joy is about spreading positive feelings. They could team up to make people in San Fransokyo feel better, Baymax by providing physical care and Joy by influencing their emotions. Then there's Hiro and Anger. Hiro might initially be annoyed by Anger's brashness, but over time, he could learn to use that energy in his battles. The other characters like Fred and the other emotions would also have their own unique interactions. Fred might try to show off to the emotions with his monster knowledge, and the emotions would either be impressed or find it a bit silly depending on their nature.
A cool Big Hero 6 crossover fanfiction idea might involve crossing over with the DC Universe. Hiro could meet Batman and learn about his detective skills and use of gadgets. Baymax could interact with Superman, which would be an interesting contrast of a big, strong hero and a soft, caring robot. Or perhaps a crossover with the Powerpuff Girls. The girls' superpowers combined with the tech - savvy of Big Hero 6 could lead to some really fun and action - packed adventures.
Hiro would likely be very curious about the emotions. He would try to study them and understand how they work. Baymax, on the other hand, would probably be very gentle and try to comfort any of the emotions that seem distressed, like Sadness. Go Go might be a bit impatient with the more timid emotions like Fear, but she would also respect their role. Fred would probably be excited to meet these new 'creatures' and want to be friends with all of them immediately. Wasabi would be a bit cautious at first, but then warm up to them.
One possible plot could be that the Big Hero 6 team visits San Fransokyo. There, they accidentally cross paths with the Incredibles who are on a secret mission. Hiro and Baymax are intrigued by the super - powered family. The two groups end up having to team up to stop a new villain who is using a combination of high - tech gadgets (like those from Big Hero 6's world) and superpowers (like those in The Incredibles' world).
I think Hiro and Iron Man would be a really interesting pairing. They are both brilliant inventors and could come up with amazing tech together.
First, understand the core elements of both Big Hero 6 and the other crossover element. For example, if it's a crossover with a magical world, find a way to make the science - based technology of Big Hero 6 interact with magic. Maybe a magical event disrupts the technology in San Fransokyo, and the team has to find a way to fix it with the help of the new crossover characters. Second, develop character relationships. Show how the characters from both worlds react to each other, whether it's with suspicion or immediate friendship. Third, have a clear goal for the story. It could be to save both worlds from a common threat or to solve a mystery that involves both universes.