One common theme is the clash of different game mechanics. Since 'no game no life' has its own set of rules about games, when it crosses with other series, the differences in how games are played in those universes create interesting conflicts.
Another theme is the exploration of different power levels. When characters from 'no game no life' meet characters from other series, there's often a comparison and sometimes a struggle over who is more powerful in the context of the crossover. For example, if they cross with a series that has super - powered heroes, it's interesting to see how the siblings from 'no game no life' stack up. This theme can lead to some really intense battles and strategic showdowns in the fanfiction.
The theme of cultural exchange between the different fictional worlds is also common. Characters from 'no game no life' bring their own worldviews and values, and when they interact with characters from other series, there's a sharing and sometimes a clash of cultures. This can result in some really unique character development as they learn from each other and adapt to the new cultural norms presented in the crossover.
Another theme is the relationship between the characters. Fanfictions may delve deeper into the emotional bonds between Sora, Shiro, and the others. For example, some might focus on how they support each other during difficult games. It can also show their growth as individuals and as a team.
The theme of fate and free will often comes up. In a game - like life, some might think that everything is pre - determined like a game's script, while others believe they have the power to change their path. This creates an interesting dynamic in the fanfiction. There's also the theme of the unexpected. Just as in games, where a random event can change the whole course of play, in these stories, unexpected things can happen to the characters that completely shift their 'life - game' experience.
One common theme is the exploration of different realities. Since 'life is strange' already has elements of time - traveling and alternate realities, when it crosses over with other universes in fanfiction, this theme gets even more complex and interesting.
Power is a common theme. In these fanfictions, characters in the harem often vie for power, just like in the original Game of Thrones. They use their relationships with the central character to gain influence.
One common theme is friendship. When different shows' characters meet in the crossover fanfiction, they often form new friendships or strengthen existing ones.
One common theme is adventure. Since 'the suite life on deck' already has an element of adventure on the cruise ship, when it crosses over with other shows or universes, the adventure aspect gets even bigger. For example, if it crosses over with a show about exploring ancient ruins, the characters will embark on even more exciting and dangerous quests.
One more theme could be growth. Shiro, with her already high intelligence, and Izuna with her own abilities, can grow both individually and in their relationship. For instance, they could learn from each other's strengths and weaknesses. In some fanfictions, there might also be a theme of discovery, as they explore new aspects of the 'No Game No Life' world together, which is full of strange rules and entities.
Another theme is friendship. Tsuna usually teams up with his friends in these fanfics, and their relationships are tested and strengthened through the game - life experiences. They might have to rely on each other in battles or solving puzzles within the game world. For example, they could be in a dungeon - crawling scenario where each member has to contribute their unique abilities to progress. And also, the theme of discovery is quite common. Tsuna often discovers new aspects of his powers or the world around him while in the game - life situation. This could be in the form of finding hidden levels or unlocking special abilities that were previously unknown.
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.