A possible plot is that Eggman kidnaps Sonic because he wants to prove to the world that he can finally defeat Sonic. He locks Sonic in a high - security cell. Sonic, while in captivity, starts to communicate with other captured creatures. They work together to create a distraction so that Sonic can break free. Sonic then races through Eggman's base, destroying his machines along the way and finally makes his escape.
Well, in a 'Sonic gets kidnapped by Eggman' fanfiction, there could be a plot where Eggman tries to turn Sonic into a weapon. He might experiment on Sonic, but Sonic resists with his strong will. Meanwhile, Sonic's friends like Tails start searching for him. Tails could use his intelligence to track down Eggman's hideout. And when they finally find Sonic, there's an epic battle between Sonic's friends and Eggman's forces to free Sonic.
Obviously, Sonic and Eggman are the key characters. Sonic is the kidnapped one and Eggman is the kidnapper. But also, Tails could be a very important character. Since he is Sonic's best friend, he would likely be the first to try and rescue Sonic. Knuckles might also be involved. He could help in the search or be the muscle during the rescue mission.
One possible plot could be that Ash is kidnapped by a rival trainer group who want to steal his Pokémon. His friends then have to embark on a rescue mission, facing various challenges and battles along the way.
One possible plot could be that Sonic is bullied by a new group of antagonists in his world. They might make fun of his speed, saying it's not all that great and constantly tripping him up during races. Another plot could be that Sonic is bullied by some of the other characters who are jealous of his popularity. They start spreading false rumors about him, which makes some of the animals in the forest start to avoid him.
One interesting plot could be Sonic and Eggman having to team up against a new, more powerful enemy that threatens their world. They put aside their differences and combine their unique skills, like Sonic's speed and Eggman's inventions, to defeat the foe.
A really interesting plot could be that Sonic is kidnapped into another dimension by a powerful being. In this dimension, the laws of physics are different, and Sonic has to figure out how to use his speed in new ways to escape. His friends back in his own dimension are desperately trying to find a way to bring him back. Meanwhile, Sonic meets some strange new allies in this other dimension who help him in his quest to return home.
One interesting plot could be that Link is kidnapped by a group of rogue Sheikah. They believe Link has a special power that can be used for their own gain. His friends then embark on a quest to rescue him. They face various puzzles and enemies along the way. Another plot might be that Link is kidnapped by a powerful sorcerer who wants to use Link's connection to the Triforce. Link has to find a way to escape while his friends try to figure out where he is. Maybe there's a time limit too, adding more tension to the story.
A common plot in 'Aria Gets Kidnapped Fanfiction' is the psychological battle. The kidnapper may try to break Aria's spirit, but she refuses to give in. She uses her mental strength to outwit the kidnapper. For instance, she might pretend to be compliant while actually looking for ways to signal for help. Another aspect could be the discovery of new powers or abilities within Aria during her captivity. This could be something like she discovers she can communicate telepathically with a nearby animal who then helps her escape. Also, there could be a plot where the kidnapper is actually a misunderstood character, and through her time with him, Aria comes to understand his motives and tries to reform him.
In this fanfiction, Catwoman might kidnap a detective who has been getting too close to uncovering her identity. She could hold the detective hostage in an elaborate hideout. As she holds the detective, she might have some internal struggle about whether to harm the detective or let them go. Another idea is that she kidnaps a famous fashion designer to get her hands on the latest high - tech fashion items that could give her an edge in her cat - burglar activities.
One possible plot could be that Shawn is kidnapped by a group who mistakes him for someone else. They hold him hostage in an abandoned building while his friends race against time to find him. Another plot might involve Shawn being kidnapped as part of a revenge scheme against someone close to him. The kidnappers then demand some form of restitution in order to release him.
One possible plot could be that Tails is kidnapped by an old enemy seeking revenge. Maybe Eggman wants to use Tails' intelligence for his own evil schemes. He could hold Tails captive in his secret lair and try to force him to build some powerful weapon.