Exploration is also a key theme. In crossovers, new areas and concepts are introduced. In a 'Fallout 4 x Mass Effect' crossover, the vastness of the Mass Effect galaxy is added to the Fallout 4 world. The characters are then driven to explore these new regions, whether it's alien planets in the Mass Effect universe or hidden parts of the wasteland that have been affected by the crossover.
Survival is a big one. Both Naruto and Fallout worlds have elements of characters having to fight for their lives. In these crossovers, Naruto characters often have to adapt to the harsh post - apocalyptic conditions of Fallout to survive.
Survival is a big one. Both Resistance and Fallout 4 are set in rather harsh worlds, so in the crossovers, characters often have to fight to stay alive. Another common theme is the clash of different technologies. Resistance has advanced alien - fighting tech while Fallout 4 has its own post - apocalyptic, makeshift tech.
One common theme is the clash of cultures. Since it's a crossover, different cultures from the FFXIV world and the other crossed - over world collide, which makes for interesting storylines.
One common theme is the clash of different powers. For example, when Venom crosses over with other superheroes or villains, there's always a comparison and sometimes a struggle between their abilities. Another theme is the exploration of new relationships. Like in crossovers with Spider - Man, it's about their complex relationship, whether they're enemies or allies at different points.
Often, there's a theme of friendship and cooperation. In crossovers like Boruto with the Attack on Titan world, Boruto and his friends have to work together with the characters from that world, like the Survey Corps. They learn from each other and grow stronger together. Also, a sense of discovery is common. Boruto and his team are often in a new world they don't understand, and they have to figure things out, which makes for an interesting read.
One common theme is the clash of different magic systems. For example, when Skyrim crosses over with a magical - based world like Harry Potter, you get to see how the Restoration magic in Skyrim compares to the spells in Hogwarts. Another theme is cultural differences. If Skyrim crosses with a world like Middle - earth, the Nordic culture clashes and sometimes blends with the cultures of elves and men in Middle - earth.
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.
Another theme is the exploration of different universes. In many crossovers, Supergirl might find herself in a different universe where the rules are different. This allows for interesting plot developments as she has to adapt to new situations and new versions of familiar characters. It also gives a chance to explore what makes her character unique compared to others in different universes.
One common theme is the clash of cultures. Since it's a crossover, different worlds or time periods collide, and the musketeers have to adapt.
One common theme is power - how the characters from 'the breaker' interact with characters from other universes in terms of their powers. Another could be friendship. When different characters cross over, new friendships can form.