In some fanfictions, Ben might travel to a dimension where his family members have different personalities or abilities. This could lead to a lot of self - discovery for Ben as he has to deal with these new versions of his loved ones. He may also have to find a way to get back to his own dimension while facing challenges specific to that new dimension.
Well, a great plot might be that Spiderman travels to a dimension that's a post - apocalyptic world. In this world, he teams up with the few remaining survivors who have some unique abilities of their own. Together, they try to find a way to restore their world while Spiderman also looks for a way back to his own dimension. Or perhaps he travels to a dimension where the laws of physics are completely different, like he can run on water or fly without his webs. He has to adapt quickly to these new conditions and also face the threats in that dimension.
She could travel to a dimension where all the ninja villages are united. Naruko would be amazed at the peace and cooperation and might try to bring this concept back to her own dimension. It would be a story about her learning from this utopian - like place.
One interesting plot could be Ben traveling back in time to meet his younger self and having to hide his identity while trying to prevent a future disaster that his younger self unknowingly causes.
Gwen Tennyson also often plays an important role. In the dimension travel fanfiction, she might accompany Ben on some of his travels or be a key figure in the dimension he travels to. Her magic powers can add an interesting dynamic to the story, especially when combined with Ben's alien forms.
Another plot might involve Ben and Kai getting accidentally transported to a parallel dimension where things are very different. They have to find a way back home while also dealing with the strange new versions of their friends and foes. Along the way, they discover new things about each other and their feelings start to change in this unfamiliar setting.
In some Avengers dimension travel fanfiction, the idea of different dimensions having unique laws of physics is explored. This can lead to really cool scenarios like the Hulk's strength being affected in unexpected ways or Thor's powers working differently. It adds a layer of unpredictability to the story and makes it more exciting.
Another concept could be Naruto having to adapt to different power systems in the dimensions he travels to. Maybe in one dimension, physical strength is more important than chakra control, and he has to learn new fighting styles to survive.
In this type of fanfiction, a possible plot is that Naruto is sent to a dimension where time moves differently. He might age at a much faster rate, and he has to quickly master the ways of this dimension to find a way to reverse the time effect on him. Another cool plot could be that he lands in a dimension that is a mirror image of his own, but with opposite personalities for everyone. So he has to deal with a Sasuke who is overly friendly and a Kakashi who is always serious, which makes for a really strange and challenging adventure.
One interesting plot could be Ben exploring a new alien world during his summer vacation. He discovers a rare alien species and has to use his Omnitrix to protect them from a villain who wants to capture and sell them. Another plot might involve Ben and his friends going on a beach vacation, but they end up having to deal with an underwater menace using their combined skills.
One interesting plot could be a female Necrofriggian facing a crisis in her home planet and having to seek help from Ben. She might have unique powers that are different from the male Necrofriggians, and Ben has to figure out how to work with her. For example, she could have a special ability to freeze time in a small area, which comes in handy during battles.