It could be really wacky. Maybe the inklings from Splatoon end up in Bikini Bottom. They might start painting the place with their ink, which could cause chaos as Spongebob and his friends don't understand what's going on at first.
Definitely Spongebob and one of the inklings, like the orange one. They both have really energetic and curious personalities, so they would be great as the main characters driving the story forward.
Well, Spongebob could visit the Loud House and get into all sorts of wacky adventures with the Loud siblings. Maybe he'd introduce them to his Bikini Bottom friends like Patrick and Sandy.
One possible plot could be that Spongebob and Patrick get lost in a magical portal and end up in Equestria from My Little Pony. They meet Twilight Sparkle and her friends. Spongebob's positive attitude and Patrick's goofy nature could create some humorous situations as they try to figure out how to get back home while also getting involved in the local pony adventures, like helping to solve a problem with a magic spell gone wrong.
In this crossover fanfic, the art style of Spongebob could be merged with the dark undertones of the Twilight Zone. There could be episodes where Squidward gets trapped in a time loop, similar to some Twilight Zone episodes. And Spongebob, being the heroic character he is, would try to break the loop. This would create a unique blend of humor from Spongebob and the thought - provoking nature of the Twilight Zone.
It could be a story about their adventures together. Maybe they team up to face a new and powerful enemy in the Splatoon world. They could combine their unique skills, with Agent 8's adaptability and Agent 3's experience, to overcome challenges.
The plot could involve a lemon - themed competition in Bikini Bottom. Spongebob and Sandy team up. Sandy uses her scientific knowledge and Spongebob his unique underwater skills. They enter the contest which is all about creating the best lemon - based product. Along the way, they learn about cooperation and friendship while dealing with competitors like Plankton who tries to steal their ideas.
Well, in a fanfiction, SpongeBob could be fired due to a misunderstanding. For example, Mr. Krabs misinterprets something SpongeBob says as a threat to quit. SpongeBob is devastated. He then tries different jobs like being a delivery boy for a seaweed company. However, he misses the Krusty Krab so much. In the end, Mr. Krabs figures out the truth and welcomes SpongeBob back with open arms.
One interesting plot could be that Bowser teams up with the Octarians in the Splatoon world. He wants to use their ink technology to take over both the Mushroom Kingdom and the Splatoon world. Mario has to then form an alliance with the inklings. He travels through different ink - filled levels, learning new skills like swimming in ink and using ink - based weapons. Along the way, he discovers secrets about the connection between the two worlds. They finally face Bowser and the Octarian leader in a huge battle where Mario combines his classic moves with the ink - powered attacks of the inklings to save both worlds.
The fanfiction could revolve around a new character who has the ability to traverse between the Splatoon and Persona 5 worlds. This character discovers a conspiracy that if not stopped, will merge the two worlds in a disastrous way. The character enlists the help of both the Inklings and the Phantom Thieves. They have to overcome their differences in fighting styles and cultures to save both their worlds. The inklings' turf war strategies could be adapted to the battles in the Metaverse, and the Phantom Thieves' stealth could be useful in the Splatoon world.
It could be really cute. They might have an underwater and land combined wedding. Spongebob would bring all his Bikini Bottom friends, and Sandy would have her treedome pals there. Maybe Mr. Krabs would be in charge of the 'food' which would be a mix of sea - food and acorns for Sandy. And Squidward would be reluctantly playing the clarinet at the ceremony.