Dr. Doofenshmirtz is also a great character in fanfiction. His backstory and his constant attempts to be a successful villain are often delved into. Writers can play with his relationship with his daughter and how that affects his evil plans. He can be both sympathetic and hilarious at the same time, which makes for great fanfiction.
One interesting storyline could be Perry and Dr. Doofenshmirtz teaming up to face a new, greater evil in the Tri - State Area. Maybe an alien invasion where their usual rivalry takes a backseat as they work together using their unique skills. Perry's spy skills and Dr. Doofenshmirtz's wacky inventions could combine in unexpected ways to save the day.
Well, Heinz Doofenshmirtz had a rather tough childhood. He grew up in Drusselstein. His parents were neglectful, for example, they missed his birthday. This led to his somewhat villainous tendencies as he always felt unloved and overlooked, and now he constantly tries to take over the Tri - State Area in an attempt to gain some form of recognition.
One key element is his difficult childhood in Drusselstein. Another is his neglectful parents. These things led to his need for recognition which drives his villainous actions in the Tri - State Area.
Doofenshmirtz's life story is full of misadventures. As a child, he was overlooked and bullied. This led him to develop his 'evil' persona. His attempts to take over the Tri - State Area are more like comical follies than actual threats. He constantly clashes with Perry the Platypus. His life is a series of building and then failing at his inators, which are his crazy inventions meant to achieve his goals.
Well, his difficult childhood with his family in Drusselstein was a crucial start to his life story. It made him feel like an outcast. When he decided to become an 'evil' scientist in Danville, that was a major turning point. His countless attempts at building successful inators, like the -inator of the day, are important events. His relationship with Vanessa evolving over time, from her being embarrassed by him to perhaps understanding him a bit more, is also key. And his ongoing battles with Perry the Platypus, which are filled with humor and unexpected twists, are some of the most memorable events in his life story.
Well, 'Perry and Doofenshmirtz: The Human Side' is quite interesting. It delves into what would happen if Perry was more human - like in his emotions and how Doofenshmirtz would react to that. Then there's 'A Day in the Life' which shows a normal day for both Perry and Doofenshmirtz but with a human Perry twist. Perry has to deal with human - like problems like getting to work on time and Doofenshmirtz tries to take advantage of this new Perry. Also, 'The Great Adventure' is a fanfiction where human Perry and Doofenshmirtz go on an adventure together, exploring places they've never been before and learning more about each other along the way.
The Dr. Stone anime ends approximately at a certain point in the manga, but it's not an exact match. Some storylines might be slightly reordered or condensed for the anime adaptation.