Another thing that could occur is that he might accidentally create new threats. By interfering with the past, he could disrupt the natural flow of events and cause new villains to emerge or existing ones to become more powerful in different ways. It's a risky move going back in time, even in fanfiction.
Well, he might prevent some of the villains from ever becoming powerful. For example, he could stop Frieza from getting all those power - ups.
Well, he could change a lot of things. Maybe he'd prevent some of the big battles or save some characters who died. For example, he might stop Frieza from destroying Planet Vegeta earlier. It would be a whole new timeline with different outcomes.
Well, he could change a lot of things. Maybe he'd prevent some of the big battles or save some characters who died in the original timeline. For example, he might stop Frieza from destroying Planet Vegeta earlier. It would also be interesting to see how his Ultra Instinct powers interact with the past events and characters who haven't seen such power before.
Goku might run into past versions of his friends. He could see a younger Krillin or Bulma and have some really interesting interactions. He could also meet past versions of his enemies and try to change their fates. For instance, he could meet a young Vegeta and try to steer him away from the path of evil. This would be a huge change in the Saiyan's story.
Perhaps he wants to save his friends. If he knew in the future that some of his friends died in certain battles, he might go back in time to change that. For instance, if Piccolo died in a fight with a powerful enemy, Goku could go back and help Piccolo, using his more advanced skills and power.
In this fanfiction, they might have an epic sparring session. Adult Goku could teach Kid Goku some new techniques, like the Instant Transmission. It would be amazing to see how Kid Goku reacts to Goku's Super Saiyan forms.
They could have a friendly sparring match. Goku is always up for a good fight, and Caulifla would be eager to test her skills against him. It would be a high - energy battle with lots of fast - paced action and cool power - up moments.
Well, perhaps Gohan goes back in time to save his father, Goku, from some early danger. He could then train alongside Goku when they were younger, leading to a much stronger Goku earlier in the timeline. This could also have a ripple effect on the relationships within the Z - fighters. For example, with a stronger Goku earlier, their battles against the Red Ribbon Army or other villains might be much easier and quicker.
In this kind of fanfiction, Goku might lose his family. For example, his friends and loved ones could be killed by a powerful new enemy. This would leave him in a state of deep despair and loneliness, and he would have to find a way to carry on without them.
One possibility is that Gine could train Goku in some long - forgotten Saiyan techniques. Since she is his mother, she might know some unique skills that could make Goku even stronger.