Imagine you are playing with your toy cars and you have a huge toy box with different tracks, cities, and environments for your cars to race in. Now, let's say that each time you pick a different toy car to race, you enter a different toy box that looks a little different from the one before.
A multiverse in a video game is kind of like that toy box, but instead of toy cars, there are different versions of the same game, and each version has a different story or different characters.
Just like you can pick a different toy car to race in a different toy box, you can select a different game mode to play in a multiverse video game, and they can have different maps, storylines, and characters.
So, instead of playing the same game over and over again, a multiverse video game offers different variations of the same game, presenting new challenges and experiences. And just like how each toy box can look different, each multiverse game can have unique visuals, sounds and challenges, making it exciting each and every time you play it.