The Joker is extremely popular in these fanfictions. His maniacal personality and zany schemes make for great storytelling. Batman, on the other hand, is the stoic hero that fans love to see foil the Joker's plans. Additionally, Batgirl has her own fan following in Lego Batman fanfiction. She brings a different dynamic to the stories, being a strong female character in a male - dominated world of Gotham crime - fighting.
Obviously, Batman and the Joker are the most popular. Batman is the hero, with his cool gadgets and detective skills. The Joker is the chaotic villain, always coming up with wild and unpredictable plans. Robin also often appears in fanfiction, as Batman's sidekick. He adds a bit of youthful energy and sometimes gets into his own mini - adventures while helping Batman.
Harley Quinn is quite interesting. She's caught in the middle between her love for the Joker and her own sense of self. Commissioner Gordon is also important. He's the one who often has to deal with the aftermath of Batman and the Joker's battles and is a symbol of the law in Gotham.
One interesting storyline could be Joker devising a new, elaborate plan to take over Gotham City that involves some wacky and unique traps. Batman, of course, has to use his Lego - themed gadgets and skills to stop him. Another could be a story where Joker and Batman are forced to team up against a greater threat, like a powerful alien invasion in the Lego universe. Maybe they start to understand each other a little better during this time.
One popular type of original character in these fanfics is the tech - genius sidekick. They provide Batman with new gadgets and strategies to use against the Joker in his revenge plot. These characters usually have a unique backstory, like being an outcast in the tech world but finding purpose in helping Batman. Also, there are the street - smart informants. They know the seedy underbelly of Gotham and can give Batman valuable information on the Joker's whereabouts.
Another popular character could be Miyoshi. He has a certain charm and naivete in the original, and in fanfiction, this can be played with in various ways. For example, his growth as a character or his relationships with other characters can be explored more deeply, which makes him a favorite in the fanfiction world of 'Joker Game'.
The Ewoks are quite popular too. They could be the heroes in a fanfiction, using their unique skills and the forest environment to their advantage against the evil forces in the Lego Star Wars world. For example, they might build elaborate traps out of Lego pieces to catch the bad guys.
Batman himself is of course extremely popular. He is the central figure, and in 1939 fanfiction, people love to explore different aspects of his character, like his detective skills and his relationships.
Robin, in all his incarnations, is also a popular character in fanfiction related to Batman. He represents the sidekick aspect and the growth and development that comes with it. In Batman Beyond, Commissioner Barbara Gordon also features prominently in some fanfictions. Her connection to the original Batman era and her role in the new one can be explored in interesting ways.
The Joker and Batman are the key players. However, in some fanfiction, other characters from the Batman universe might also play important roles, like Harley Quinn who has a close relationship with the Joker, or Commissioner Gordon who is often involved in the Batman - Joker dynamic.
Chase McCain is definitely a popular choice. He's the main character in the game and has a lot of charisma. His detective skills and ability to take on different disguises make for interesting storylines.
Batman himself is obviously very popular. His dark and brooding nature contrasts well with the more colorful X - Men world. Also, Wolverine is often a fan favorite in these crossovers because of his tough - guy attitude.