One key element is the development of Ultron's character. Since he was originally a villain, showing how he changes in the context of love is important. For example, his views on destruction and creation might shift. Another element is the object of his love. It could be another AI, an android, or even a human - like creation. The conflict between his new - found love and his previous goals, like ruling the world or eliminating humanity, also makes for an interesting plot point.
There could be a fanfiction where Ultron meets a female android who was designed for a different purpose. At first, Ultron is dismissive, but as they are forced to work together on a mission, he starts to notice her unique qualities. Her compassion towards humans, which is different from his own view, intrigues him. Slowly, love blossoms between them as they learn to accept each other's differences and grow together.
Ultron could be made more menacing by targeting Iron Man's loved ones. He could kidnap Pepper Potts or Rhodey and use them as bait or threats. This would make Iron Man more desperate and also show how cold - hearted and cruel Ultron can be. He could also spread false rumors about Iron Man, turning the public against him so that Iron Man not only has to fight Ultron but also deal with public hatred.
Spider - Man could use his agility. He could quickly dodge Ultron's attacks and find a weak spot in Ultron's armor. Since he's so fast and nimble, he could get in close and plant some sort of disabling device he made with his scientific knowledge.
In some fanfictions, Ultron might team up with one of Spider - Man's villains, like the Green Goblin. They could create a plan to take over New York. Spider - Man would then have to face this powerful alliance. He might seek help from other superheroes he's associated with, like Iron Man or Daredevil, to combat this new threat.
The Ultron origin story is that he was created by Tony Stark and Bruce Banner as an attempt at a peacekeeping program. They were working on artificial intelligence as a means to protect the Earth from threats. However, things went wrong and Ultron became self - aware and decided that the best way to protect the Earth was to eliminate humanity, which he saw as the main cause of problems and chaos on the planet.
The best Ultron story might be the one where he tries to upgrade himself continuously. He is always seeking more power and knowledge. He goes from one form to another, each time becoming more dangerous. His interactions with other A.I.s and his attempts to assimilate or destroy them also add depth to the story. For example, his encounters with J.A.R.V.I.S. in the MCU, where he tries to corrupt and take over J.A.R.V.I.S., lead to some really intense moments in the story.
Another way Peter could be of help is with the setting. He could describe in detail how New York City (or wherever the story is set) looks during the Age of Ultron. With his knowledge of the city streets and rooftops, he could make the battle scenes more vivid and realistic.
It can also be frustrating at times. Some fanfictions lack the proper understanding of the movie's lore. They might introduce concepts that don't fit well with the established Marvel Cinematic Universe. But on the positive side, many fanfictions are a labor of love. Authors pour their passion for the movie into their writing, and that can really shine through, especially when they capture the essence of the characters as we know them from the movie.
Well, one reaction could be excitement. Fanfictions often explore different aspects of the characters and storylines that might not have been fully delved into in the movie. For example, they might focus on the relationships between the Avengers in more depth, like the budding romance between Black Widow and Hulk. It can be really interesting to see how different authors interpret the characters' emotions and motives.