Perhaps a mad scientist in the RWBY universe creates a zombie - like army. The RWBY girls and their friends find themselves in a race against time. They not only have to deal with the zombies but also the traps and defenses set up by the scientist. Weiss could use her Glyphs to create barriers against the zombies, Blake could use her speed and stealth to scout ahead, and Yang could use her strength to take on groups of zombies. Ruby, with her leadership and Crescent Rose, would lead the group through this post - apocalyptic nightmare.
Well, the plot could involve pokemon being infected with a virus that turns them into zombie - like creatures. Trainers would then have to either find a way to cure their pokemon or put them down. The world would be in chaos as the zombie pokemon spread the infection.
Well, it could be about Sonic and Knuckles teaming up to survive in a world overrun by zombies. Maybe they use their unique abilities, like Sonic's speed and Knuckles' strength, to fight off the undead hordes.
Maybe Voldemort somehow resurrects an army of zombie Death Eaters as a last - ditch effort to take over the wizarding world. But this time, the good side has to team up with some unexpected allies, like the giants and the house - elves, to defeat this new threat. The story could explore how different magical creatures react to the zombie apocalypse and how their unique abilities can be used in the fight.
Well, it could be about Sonic and Tails trying to survive in a world overrun by zombies. Maybe they use their speed and Tails' inventions to outrun and fight the zombies. They might search for other survivors or a safe haven.
A possible plot could be that an unknown enemy uses a powerful jutsu that accidentally creates zombies. The story could start with Naruto and his friends in Konoha noticing strange behavior among some villagers. As the situation worsens, they realize it's a zombie outbreak. They then have to band together, find out the source of the outbreak, and try to stop it while also protecting the remaining survivors.
The members of Team JNPR could also be likely survivors. Jaune has grown a lot in his skills. His leadership and swordsmanship could be useful. Pyrrha, if she were still alive in this fanfic scenario, would be a great asset with her combat abilities. Ren's calm and collected nature, along with his stealth and combat skills, would help him survive. And Nora, as mentioned before, would be a great addition to the group of survivors. They could work together with Team RWBY to face the zombie apocalypse.
The plot could involve a common enemy that threatens both the RWBY world and Konoha. So, the characters from RWBY and the ninjas of Konoha have to team up. For example, Salem's forces could somehow cross over into the Naruto world. The ninjas would be amazed by the unique abilities of the RWBY characters like semblances. In turn, the RWBY team could learn about chakra and ninjutsu. This would lead to some interesting training sessions and battles where they combine their powers in creative ways.
It could be an experienced trainer who has a special bond with their pokemon. When the apocalypse occurs, they use their knowledge and skills to lead other trainers. Their pokemon might have some unique abilities that are crucial in fighting the zombie pokemon. For example, a psychic - type pokemon could be used to detect the zombie pokemon from a distance.
Well, it could be about Ruby discovering her Saiyan powers. Maybe she starts to show super strength and speed like a Saiyan. She could use her scythe in new and powerful ways, inspired by Saiyan combat styles.
Perhaps it's a story where a team member is caught by an enemy who uses snake - themed attacks or has snake - like minions. The caught character then has to rely on their wits and the skills they've learned in Beacon Academy to escape. The other team members would then have to come up with a rescue plan while facing their own challenges in the dangerous RWBY world.