One idea could be that Goku arrives in the Pokemon world by some sort of interdimensional rift. He might be confused at first but then start to explore the concept of Pokemon battles. He could use his martial arts skills to train Pokemon in a unique way, like teaching them special combat moves. For example, he could train a Pikachu to use a move similar to his Kamehameha, but in a more Pokemon - friendly version, like an electric blast with a similar charging motion.
Well, Goku's super strength and fighting abilities could make him a powerful ally or a formidable foe in the Naruto world. His ki powers might be seen as a strange new form of chakra. He could also teach the Naruto characters some of his unique fighting techniques, like the Kamehameha wave.
Well, Goku's extreme power level could make him a sort of legend in the Naruto fanfiction world. His Saiyan abilities like the Kamehameha and Super Saiyan forms would be completely foreign to the ninjas. He might be seen as an otherworldly being, and his presence could disrupt the power balance. Maybe he'd come to the Naruto world seeking a new challenge, or perhaps he was accidentally transported there.
One interesting plot could be Goku and Steven Universe teaming up to face a powerful new villain that combines the threats from their respective universes. For example, a gem - powered foe with Saiyan - like combat abilities.
It could lead to epic battles and team-ups. Goku's super strength and energy attacks would mix with Marvel's heroes and villains in exciting and unpredictable ways.
Well, Goku Black could be a powerful antagonist in the RWBY fanfic. His combat skills and powers from the Dragon Ball universe would make him a formidable foe. He could have his own motives, like seeking power in the RWBY world or trying to impose his own sense of order. For example, his ability to use ki blasts could be a new and terrifying threat to the Huntsmen and Huntresses in RWBY.
In this fanfiction, Goku vs Jiren is likely to be an epic battle. Goku's power with the Universe's Watch might bring new and unexpected abilities. Jiren, on the other hand, is an extremely powerful opponent. The fight could involve intense energy blasts, high - speed combat, and strategic maneuvers. It might also explore the growth of Goku's character and his newfound power in relation to Jiren's unwavering strength.
Perhaps Goku would be a traveler from another dimension in the Star Wars fanfiction. He stumbles upon the Star Wars galaxy while exploring different universes. His naivete about the ways of the Star Wars world would be an interesting aspect. He might initially mistake the lightsabers for some sort of Ki - enhanced weapons. His presence would disrupt the power balance as he's so much more powerful than most characters in the normal Star Wars setting, and this could lead to all sorts of new storylines.
Well, Goku could be a powerful Jedi or Sith in a fanfic. His super strength and fighting skills would make him a force to be reckoned with. He might use his Ki abilities like the Force, and his Saiyan transformations could be seen as a new kind of power-up in the Star Wars world.
I think the message from Goku manga could be anything from a call for help to a declaration of victory. Maybe it's a secret he's sharing or a strategy for a big fight. You never know with Goku!