One idea could be a crossover with other Lego themes like Ninjago. The Monkie Kid characters could team up with the Ninjago ninjas to fight a common enemy. For example, a powerful dark force that threatens both their worlds. They could combine their unique skills and powers, like Monkie Kid's staff skills and the ninjas' elemental powers.
First, choose the other franchise or concept you want to cross over with. Then, think about how the characters from both will interact. For example, if it's a crossover with a superhero universe, consider how Monkie Kid's powers compare to the superheroes' and how they'd work together or against each other.
One possible plot could be that the Monkie Kid characters accidentally end up in the Ninjago realm. They meet the Ninja and at first there are misunderstandings as they don't know each other's powers and motives. But then they realize they have a common enemy, like an ancient evil that threatens both their worlds. So they team up, with the Monkie Kid using his magic staff and the Ninja using their elemental powers to fight this great evil.
The characters would likely start off being cautious of each other. For example, the Ninja from Ninjago, who are used to their own ways of fighting and protecting their world, might be a bit wary of the Monkie Kid and his friends with their different powers. But as they face challenges together, like fighting a common enemy, they would start to respect each other's skills. The more talkative characters from both sides would probably be the ones to break the ice and start sharing stories about their respective worlds.
Monkey King is also highly popular. His long and rich history in Chinese mythology gives a lot of material for fanfiction. Writers can explore his past adventures, his relationships with other mythological beings, and how he mentors MK.
One idea could be exploring MK's training in more detail. Show his struggles and how he overcomes them. For example, he might face a new and extremely powerful demon that forces him to master a new skill quickly.
Laval is definitely a great choice. He's the main hero in Chima, so he can bring his leadership and courage to any crossover. Eris would also be good as she has her own unique powers. In a crossover with Ninjago, for example, her powers could complement the ninja's skills. Another great character is Cragger. His sometimes - villainous nature can add an interesting dynamic. If there's a crossover with a more villain - heavy story, he could be a key player. And don't forget about Worriz. His cunning and combat skills can make for some exciting interactions in a crossover situation.
First, know your source materials well. You need to be familiar with the different Lego Dimensions universes you're crossing over. This includes understanding the characters, their abilities, and the rules of their respective worlds.
One idea could be a Lego crossover between Star Wars and Harry Potter. Imagine Lego Darth Vader facing off against Lego Voldemort. Another could be a crossover with superheroes like Lego Batman teaming up with Lego Iron Man to save Lego Gotham and Lego New York. Or a crossover of Lego Pirates of the Caribbean with Lego Lord of the Rings, with Jack Sparrow and Aragorn on an adventure together.
In a Lego kid crazy story, there could be a kid building an enormous Lego city. He might use different sets and pieces to create skyscrapers, roads, and even a Lego zoo with all kinds of Lego animals.