So I had a dream....
So we know that SKZ lore is based of parallel worlds, but what if the different SKZs we see here a different SKZ.
Some terms to be used
-Alternative universes: A new alternate universe is made every time there is a choice (Like if I ask you to pick a ball. An alternate universe is made for the result of each choice)
So we know Han was the first one to travel to an alternate universe(In Hellevator, he didn't want to leave his childhood and so used the Hellevator to travel to a alternate universe where SKZ doesn't grow up.
What he didn't know was he could just teleport that easily. Only Felix could do that (We can see different cases where he teleports into different universes seamlessly) In his attempt to escape his universe, he caused universes to clash into each other(When universes clash, the SKZ from a universe fall into another and either fight or work together). That's why in most MVs, there are two different SKZs, fighting each other.
Although there are many SKZs, The 4 I'll be taking about are:
-Fugitives
-School boy
-Hero
-Villain
Fugitives are the ones who escaped District 9 and on their way to find their home
School boys are the film makers working in their clubhouse trying to stay together(There is more to this but it's not important right now)
Heros are the SKZ that are trying to saves the collapsing Universes from monster And/or villain SKZ
Villains are the SKZ that want revenge for the politician (Y'know that guy in Miroh and Side Effects). They fall into universes and overthrow their leader (Or rather the universe's 'District 9') This came be seen in god's menu, thunderous, back door, etc. (Random people were walking around plainly, lacking individuality. Just like SKZ before they escaped. This is what they mean by 'Straykids world domination' that's their plan.
But there are a few times Hero SKZ and Villain SKZ worked together , like in circus.
But in ODDinary, the SKZ of that universe were missing except Felix who went to look for them. They were replaced by Villain SKZ.
In Maxident, The Heros are fighting against Pipi(love monster) who was working with evil SKZ, to make Maxident SKZ lovey-dovey zombies that will stop Hero SKZ on their Behalf.
But in 5-star, There are some parallels between Maxident, so I think 5-star is what there were before Pipi. (So says aa stay theorologist on YouTube)
Note: This is my own theory amongst many others in the fucked up SKZ universe and it wasn't meant to attack anyone's claims but to express mine. If you would like to use my Theory, give me credit