The theme of identity is often explored in durarara crossover fanfiction. For instance, when crossed with 'Psycho - Pass', the question of what defines a person in a society with strict moral evaluation (Psycho - Pass) and in the chaotic, diverse world of Durarara becomes a central point. Another common theme is the struggle for power. When combined with 'Attack on Titan', the fight for survival and power in both universes makes for a very engaging narrative.
One common theme is the clash of different worlds. Since it's a crossover, you often see the unique settings of each original work collide. For example, if it's a Durarara!! and Bungo Stray Dogs crossover, the normal yet chaotic Ikebukuro and the world full of gifted individuals with special abilities from Bungo Stray Dogs create a lot of interesting situations.
One common theme is the OC trying to fit into the chaotic world of Durarara. They often have to deal with the various gangs and strange characters. Another theme is the OC having some sort of special power or knowledge that changes the dynamics of the Durarara world. And sometimes, there's a theme of friendship or romance between the OC and the existing Durarara characters.
One common theme is the mystery around Izaya. Female characters are often intrigued by his complex and somewhat devious nature. They might try to figure him out, which leads to interesting interactions.
Another theme is the exploration of an unlikely relationship. Since Shizuo is such a complex and often violent character, seeing him interact with an original character creates a unique dynamic. It's about two different worlds colliding, like in some fics where the OC is from a completely different background than the Durarara world.
One interesting storyline could be the characters from Durarara finding themselves in the colorful world of Equestria in MLP. For example, Celty might be mistaken for some kind of strange new creature. The contrast between the urban, often gritty setting of Durarara and the bright, magical world of MLP can lead to some really unique interactions. Characters like Mikado could be fascinated by the magic and harmony in Equestria and try to learn from it, while the ponies might be both intrigued and a bit scared of the more 'edgy' characters from Durarara.
One common theme is adventure. Since the Valerian universe is full of exciting and unknown elements, when crossed with other universes, it often leads to epic adventures. For example, a crossover with a space - opera like Star Trek could result in a story where Valerian and his companions explore new galaxies together with the Star Trek crew.
One common theme is the clash of different powers. For example, when the Incredibles cross with other superhero groups, there's always the exploration of how their powers compare and contrast.
Power struggle is a common theme. Starscream is often power - hungry in the original Transformers series, and in crossovers, this trait is magnified when he enters new universes with different power hierarchies. For example, in a crossover with the Lord of the Rings, he might try to claim the One Ring to gain ultimate power.
The theme of adaptation is quite prevalent. Asriel has to adapt to different cultures, technologies, and ways of life in the crossovers. For instance, if he enters a cyberpunk - themed world, he has to get used to the high - tech environment and the different social structures. Another common theme is the exploration of good and evil. When he crosses over to a world like the Lord of the Rings, he has to decide which side he's on and how to fight against the forces of evil in that world. This exploration of moral concepts is an important part of many Asriel crossover fanfictions.
A common theme is the clash of different assassin cultures. For example, when Hitman crosses with other assassin - themed franchises, their methods of killing, their code of ethics, and their loyalty to their respective organizations are often compared and contrasted.