Krillin would probably be one of the first to be accepting. He's always been Goku's friend and would likely see Goku's inner strength regardless of the physical form. He might even joke about it a bit at first. Vegeta, on the other hand, would be initially shocked and perhaps a bit dismissive. But as he sees Goku's power in the new form, he would gradually come to respect it. Gohan would be very curious and would want to know how this transformation happened and what it means for their future battles.
In Dokkan Battle, the story of Kid Goku LR is centered around his Saiyan heritage and his quest for power. Kid Goku is known for his pure heart and determination. His story in the game likely shows his progression from a relatively inexperienced fighter to a more formidable one. There could be story arcs that focus on his relationships with other characters in the game, such as his friends and rivals. It may also involve him obtaining new forms or power - ups through his in - game adventures, which are often based on the original Dragon Ball storylines.
Goku being born with SSJ4 in fanfic would likely make him a force to be reckoned with from infancy. This could result in quicker power-ups, different battles, and maybe even a shift in the balance of power among the characters.
Well, Naruto joining the Z Fighters would mean a lot of cultural exchange too. Naruto comes from a world with a complex ninja society, and the Z Fighters are from a more science - fiction - like world. Naruto might introduce concepts like chakra control and different ninja clans to the Z Fighters. And the Z Fighters could show Naruto their advanced technology and spaceships. In terms of battles, Naruto's shadow clone jutsu could be used to confuse enemies, while the Z Fighters' super - fast punches and kicks would be a new sight for Naruto. They could learn from each other and become even stronger as a team.
One possible plot could be Goku from the SSJ4 form crossing over into the world of Dragon Ball GT. He could encounter new threats that require his ultimate form to defeat. Maybe he teams up with the other Z - fighters in that universe to face off against a powerful and ancient evil that was sealed away long ago and has now been unleashed.
In Dragon Ball fanfic, Goku SSJ often has super strength, like being able to lift extremely heavy objects with ease. He can also move at incredible speeds, making it hard for enemies to even see him coming. His energy blasts are much more powerful than in his normal form, capable of destroying large structures or powerful foes in one shot.
The plot might involve Goku SSJ4 teaming up with some unexpected allies in the Tournament of Power. He could be using his SSJ4 powers in creative ways, like combining them with the techniques of his new allies to gain an edge over the other universes' competitors.
Naruto's chakra - based powers would contrast with the ki - based powers of the Z Fighters. His Rasengan, which is a concentrated form of chakra, could potentially be combined with the energy blasts of the Z Fighters. For example, Goku could add his ki to Naruto's Rasengan to create an even more powerful attack. Also, Naruto's ability to transform, like his Nine - Tails Chakra Mode, would give him an edge in terms of raw power and speed, which could be on par with some of the Super Saiyan forms of the Z Fighters.
In some fanfics, Goku SSJ's character development might focus on his relationship with his family. He could become more protective and understanding of his family's needs. For example, he might take more time to train Gohan and teach him important life lessons along with martial arts skills.
Vegeta would be a great character to include. His rivalry with Goku could add some interesting dynamics in the crossover. Also, Piccolo, with his strategic mind and powerful attacks, could be useful in facing the new challenges. And if it's a crossover into another anime universe, someone like Naruto could be included. Naruto's never - give - up attitude and his own set of powerful jutsu could create some amazing team - up moments with Goku.