Well, the theme of isolation is quite common. Michael often hunts in isolated areas or isolates his victims. The idea of the 'final girl' or 'final boy' is also prevalent, where there's one person who has to face Michael in the end. And there are fanfics that explore the idea of Michael being some sort of supernatural entity rather than just a deranged human, which adds an extra layer of horror.
One of the main themes in 'Michael Myers fanfic' is the idea of the unkillable. Michael is shown as this indestructible force, no matter what the survivors do. Revenge can also be a theme, like in some fanfics where a relative of a past victim tries to take on Michael. And of course, the setting of Halloween night is often used to create a spooky and familiar backdrop for the stories.
A common theme is the exploration of Michael's inhumanity. His relentless pursuit of victims is often a central focus. Another theme is fear. Fanfics play up the terror that Michael instills in the characters. Also, there's the theme of mystery, as his motives are often left ambiguous in the original movies and fanfics try to fill in those blanks.
Another theme is redemption. Some fanfics explore whether the reader can somehow bring out a different side of Michael, like a more human side. For example, in some stories, the reader's presence might make Michael question his violent ways.
One common theme is the exploration of his origin. Many fanfictions try to give a more detailed backstory to explain why he became the killer he is. Another theme is his relationship with the victims or potential victims. Some fanfictions show how certain characters might interact with him in a more complex way than just being chased and killed.
Common themes include survival. Since Laurie is constantly trying to survive Michael's attacks in the original movies, fanfics might expand on this. Also, there's the theme of obsession. Michael is obsessed with Laurie in a way, and fanfics can explore this further, like what if Laurie becomes equally obsessed with stopping Michael or understanding his motives. There's also the theme of redemption in some cases, where maybe Michael could be redeemed through his connection with Laurie, though that's a very different take on the classic horror relationship.
A common theme is the clash of different horror elements. For example, when Michael Myers crosses over with other horror icons, there's always the struggle for dominance. Another theme is the exploration of how his character, which is very much about silent stalking, would interact with more vocal or different - styled villains.
One common theme is the idea of redemption through love. The fanfiction might explore how the love of a character could potentially change Michael Myers from his violent ways. For example, a story could be about a character who sees the good in him despite his actions.
Common themes often revolve around the struggle against her father's legacy. In these fanfictions, she might be constantly battling the perception that she's like her father. Family secrets are also a theme. She may be uncovering things about her family that she never knew, which could change her whole perspective. Additionally, themes of isolation can be present, as she may be shunned because of who her father is.
Well, in 'Michael Myers baby fanfiction', a common theme is often the exploration of the human side of Michael Myers. When a baby is involved, it forces the character to perhaps show a different side. It could also be about redemption. Maybe Michael Myers has a chance at redemption through his interactions with the baby. Additionally, the theme of fear and how the baby reacts to Michael Myers' presence is also explored. The baby's natural fear and how that affects the situation around it can be a central aspect of the story. Sometimes, the stories might also revolve around the idea of family, albeit in a very unconventional way, with Michael Myers and the baby being part of some strange family - like unit in the context of the horror world.
Another theme is the idea of survival. The RWBY characters are usually faced with the task of surviving against Michael Myers, who is known for his relentless and brutal nature. This often leads to intense and suspenseful scenes in the fanfiction.
One common theme is fear. Since Michael Myers is a horror icon, the fanfictions often explore Bella's fear when confronted with him. Another theme is the mystery surrounding Michael Myers. Fanfictions might try to explain his motives or the origin of his seemingly unending rampage.
The theme of redemption can also be found in some. For example, the OC might try to redeem Michael in some way, or find redemption for themselves through their experiences with him. Also, the idea of the unknown is big. Since Michael is such an enigma, the OC often has to deal with the unknown aspects of his character and actions.