Lego Ninjago graphic novels are like visual adventures. They show the action and fun of Lego Ninjago in a format that's easy to follow. They can be stand-alone stories or part of a series, giving you more of the Lego Ninjago goodness you enjoy.
Another potential kidnapper could be a jealous rival ninja from another dojo. They might envy Kai's position in the ninja team and his popularity. So, they kidnap him to prove that they are better and to try and take his place among the main ninjas.
If Kai is kidnapped in a fanfiction, it could be that the kidnappers are after his power of fire. They might try to extract it from him or use him as a bargaining chip against the other ninjas. The story could then revolve around how Kai resists their attempts while waiting for his friends to save him.
The fans' love for the Lego Ninjago series. People who are really into the show often like to explore different relationships between the characters in fanfiction. Zane and Cole have a lot of potential for interesting storylines, whether it's about their friendship, how they support each other during battles, or even some more emotional and personal interactions that the show might not fully explore.
You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. AO3 has a large collection of fanfictions, and you can use the search function to specifically look for Lego Ninjago Zane x Cole fanfictions. FanFiction.net also has a decent amount, and you can browse through the Lego Ninjago section to find relevant works.
Well, it could be about Naruto mastering a new and powerful form of Spinjitzu. Maybe he uses it to defeat a new and extremely powerful enemy that the normal Naruto techniques can't handle.
Perhaps an ancient evil spirit that was sealed away long ago and is now awakened by the power of Spinjitzu. This spirit wants to use Spinjitzu to destroy the ninja world, and Naruto has to stop it.
It can walk around in the Lego world. Just like how normal creatures move in our world, the Lego monster can use its Lego legs to stroll through the Lego streets or fields.