One popular trope is the 'fish out of water' story. For example, Percy being in the Kung Fu Panda world not understanding all the martial arts and cultural norms there. Or Po in the world of demigods, confused about the Greek mythology stuff.
The 'culture clash' trope is also prevalent. Since the two universes are so different in terms of culture, mythology, and the way things work. In fanfics, we often see characters from one universe being shocked or intrigued by the elements of the other. For instance, the demigods might be amazed by the talking animals in the Kung Fu Panda world, and the Kung Fu Panda characters might be bewildered by the magic in Percy Jackson's world.
Another common trope is the 'team - up against a common enemy'. Writers love to create a big bad that threatens both the Percy Jackson universe and the Kung Fu Panda universe, forcing the characters to join forces. It allows for a lot of interesting character interactions and power combinations, like Percy's water powers combined with Po's martial arts skills.
One great Percy Jackson and Kung Fu Panda fanfiction is 'The Quest of Po and Percy'. It combines the mythological elements of Percy Jackson's world with the martial arts and humor of Kung Fu Panda. In this story, Percy and Po team up to face a common enemy that threatens both their worlds.
Po is definitely one of the most popular. He's the main character in the original movie and his journey from a clumsy panda to a great kung fu master makes him a fascinating subject in fanfiction. Writers can explore different aspects of his growth and new adventures for him.
One popular trope is memory recovery. In many of these fanfics, Percy has to gradually remember his past life as a demigod. It adds an element of mystery and character exploration as he figures out who he was. Another is the 'fish out of water' situation. Since he's reincarnated, he often has to adapt to a new world or time period, which can lead to some really interesting and comical situations.
One common trope is the 'fish out of water' situation. For example, Percy suddenly finding himself in Hellboy's world and having to adapt to the much darker and grittier environment. Another trope is the 'team - up against a greater evil'. This usually involves Percy and Hellboy combining their unique skills to take on a powerful villain that threatens both their worlds.
One popular trope is the 'fish - out - of - water' scenario. For example, Percy might find himself in the world of Danmachi and have to adapt to its different rules and cultures. Another common trope is the power - up trope. Characters from Percy Jackson's world might gain new abilities in the Danmachi setting or vice versa.
Po is definitely one of the most popular characters in Kung Fu Panda fanfic. His journey from a clumsy panda to a kung fu master gives a lot of room for creativity. Tigress is also popular as she is a strong and complex character. Shifu is often included too, with his wisdom and strict teaching methods being interesting aspects to explore in fanfics.
One popular OC might be a female warrior. She has a strong personality and a unique weapon, like a double - ended staff that she wields with great skill. She often teams up with Po and the Furious Five, and fans like her because she represents a different kind of strength in the Kung Fu Panda universe.
The 'powerful outsider' trope is also popular. Fem Percy is a powerful demigod, and when she enters the Avengers' world, she often has to prove herself to the team. This leads to some great action scenes and character development as she shows what she can do. It's like she's an unknown variable that the Avengers have to figure out how to work with.
Another common trope is the 'powerful female lead'. Writers love to explore how a female Percy can be even more badass. They often give her new powers or enhanced versions of her existing ones. In crossovers with other hero - based universes, she usually ends up being a key player in saving the day, like in a crossover with the X - Men where she uses her water powers in unique ways to fight mutants and villains.
A common trope is the 'fish - out - of - water' one. Fem Percy Jackson is used to the world of Greek gods and demigods, so when she's in Gotham, she has to adapt quickly. Another popular trope is the 'powerful - duo' trope. She and Batman team up and their combined skills and powers make them an unstoppable force against the villains.