In their timeline, after Trunks became Super Saiyan IV, he had immense power. That kind of power, even if he became Super Saiyan Blue, couldn't be matched. Trunks improved his strength under Goten's training. Goten's strength had already surpassed the level of a God of Destruction and an Angel. Such a level was unimaginable for Goku and the others. Therefore, to him, it was clear that even if GT Goku could transform into Super Saiyan IV, defeating Trunks was out of the question. In his mind, Trunks still had the strength to defeat Goku from this timeline.
"Come on then, Vegeta! To be honest, I'm very interested in your blue form," GT Goku said, his excitement showing. Fighting against such a powerful opponent was indeed thrilling. Although the opponent was Vegeta, it didn't dampen his excitement at all. Seeing GT Goku's excited expression, GT Vegeta's complexion turned extremely ugly.
'Damn it! That bastard Kakarot!' GT Vegeta cursed in his heart. Goku had never shown such excitement when facing him. Now, facing this counterfeit, he was so enthusiastic! This made GT Vegeta feel humiliated. But there was no denying that the counterfeit was indeed very strong, beyond his ability to handle.
"Vegeta, I'll go first!" GT Goku announced.
"Ah! Do whatever you want. But you'd better use all your strength; otherwise, you'll end up like that guy just now," Super Saiyan Blue Vegeta responded arrogantly. He clearly had no idea about GT Goku's power or maybe he could feel it but his arrogant character made him unwilling to admit it.
"Here I come," GT Goku said with a smile. In the next second, his body suddenly disappeared and reappeared in front of Vegeta, hitting his stomach hard with an uppercut.
"What? So fast," Vegeta exclaimed, taken aback. He didn't expect GT Goku to be so fast! Almost in the blink of an eye, Goku was already in front of him, leaving no time to react. Vegeta quickly lowered his arms to block.
Boom!
GT Goku's fists hit Vegeta's arms hard, and a vast, unending power poured out. Vegeta's complexion changed suddenly as he was blown away by a punch, flying uncontrollably into the air. Looking down, he saw that GT Goku had disappeared again.
"Oh no!" Vegeta realized something was wrong. He clenched his fists, and a powerful blue aura erupted from his body, stopping his movement. He quickly turned his head and saw a red spot of light swooping down towards him like a meteorite. It was impossible to avoid!
Vegeta had no choice but to raise his arms to block again. GT Goku clenched his fists and smashed down at Vegeta.
Boom! Rumble!
The moment Vegeta was hit, his body shot straight to the ground. The deafening roar caused the earth to tremble crazily, creating a huge crater and a mushroom cloud rising into the sky. Vegeta, supporting the ground with his hands, landed at the bottom of the deep pit, his body covered in scars, and blood seeping from the corner of his mouth. GT Goku's two attacks had caused significant damage.
'Damn... Damn it!! Are you kidding? How could such a thing happen? That guy Kakarot just became Super Saiyan IV, yet he's so powerful? His speed and strength have far surpassed mine,' Vegeta thought, gritting his teeth. Despite only launching two attacks, GT Goku clearly demonstrated the gap between their strengths. GT Goku's power and speed had obviously surpassed Trunks, who was also a Super Saiyan IV.
"Ohh... so amazing!! Is this my strength in this timeline? It's unimaginably powerful! Vegeta in Super Saiyan Blue is no match for him, and neither am I," Goku said in amazement, watching Super Saiyan IV Goku in mid-air.
Although he had always thought that he and Vegeta were strong, being able to reach Super Saiyan God was already impressive. Super Saiyan Blue was even stronger. But he didn't expect himself in this timeline to be so powerful! As a Super Saiyan IV, Trunks couldn't compare to himself in this timeline.
"It's really powerful. As expected of Goku, no matter which timeline it is, he is always so strong," Krillin said seriously.
Although Krillin's strength was also considerable, compared to the Super Saiyan IV Goku in front of him, there was a significant gap.
"Even though it's the same form, the gap between me and Goku is huge!" Trunks was equally astonished. He knew this disparity was due to the difference in their basic combat power since every Saiyan transformation is based on an increase in their foundational strength.
"What is that guy doing?!" both Chichi and Bulma said with some dissatisfaction. GT Goku showed no mercy in his fight against Vegeta, which made them very unhappy.
At this moment, when GT Goku saw Vegeta with his hands on the ground, he showed no intention of stopping the fight. Instead, GT Goku flashed his body forward and punched Vegeta again. Vegeta quickly evaded as fast as he could. If that bastard GT Goku hit him again, he might not be able to sustain the Super Saiyan Blue transformation, and he would definitely lose.
Thinking of this, Vegeta pushed his speed to the limit, jumping up and narrowly avoiding GT Goku's fist.
Rumble!
The moment the fist hit the ground, a huge crater spread in all directions, with a diameter suddenly reaching several thousand feet. Fortunately, this was a relatively barren area, allowing Goku to fight with all his might.
'That bastard really doesn't hold back at all!' Vegeta's body appeared in mid-air. Looking at the huge pit on the ground and GT Goku standing at the bottom, he frowned.
At that moment, GT Goku had already prepared his signature move. His hands came together, and energy concentrated in his palms instantly.
"10x Kamehameha!!"
GT Goku unleashed his unique ten times Kamehameha. This ten-fold Kamehameha was much stronger than the ordinary Kamehameha and was Super Saiyan IV Goku's real trump card.
"It's a terrifying attack..."
"This bastard, how could he be so strong?"
Watching the extremely powerful Kamehameha, Vegeta's face grew extremely solemn. He knew there was no way he could withstand GT Goku's Kamehameha attack.
Even though he knew the outcome in his heart, he couldn't just stand there and take it. His hands opened, and two energy balls condensed in his palms.
"Final... Flash!"
At the same moment, Vegeta unleashed his strongest Ki attack. The two energies collided like giant dragons. As the powerful Ki Blasts clashed, a terrifying energy shock spread in all directions, creating radiant ripples throughout the sky. Goku and the others on the ground immediately used their energy to build a barrier to protect Chichi and Bulma.
"Kakarot!" Vegeta clenched his teeth, his face grim. His power was pushed to the extreme, yet GT Goku's Kamehameha continued to eat away at his Final Flash. If this continued for a few more seconds, he would be completely defeated, and GT Goku's Kamehameha could seriously injure him.
"It seems... Dad can't hold on anymore!"
"No, I have to make a move!"
Seeing the situation in the sky, Trunks couldn't sit still anymore. If this continued, Vegeta was bound to be hit. If struck head-on by that Kamehameha, he might even be killed, which was something Trunks could never allow.
In the next second, a powerful aura erupted from Trunks' body instantly.
"Haa!!"
Trunks transformed into Super Saiyan IV, leaving everyone from the GT timeline dumbfounded.
"What... what??"
"Are you kidding? That Trunks can also become Super Saiyan IV? How is this possible?"
"Damn! There should be a limit to joking!"
GT Vegeta was utterly shocked. He had worked hard for so long and had not yet touched the threshold of Super Saiyan IV. Even GT Goku's ability to turn into Super Saiyan IV had made him very uncomfortable. But now, not only did that counterfeit possess such powerful power, even that fake Trunks in front of him could easily become Super Saiyan IV.
At this moment, Vegeta felt like the whole world was targeting him. Even his own son had broken through the limit of Super Saiyan IV, while he, the proud prince of Saiyans, was still stuck in the state of Super Saiyan II.
"Okay... that's amazing. That Trunks can actually transform into Super Saiyan IV! Isn't this incredible?" GT Gohan and GT Goten found it unbelievable.
The Trunks in this timeline could only become Super Saiyan, not even Super Saiyan II. GT Gohan, the most talented in everyone's eyes, had only reached the peak of Super Saiyan II. But Trunks, who was about the same age as them, was able to become Super Saiyan IV! This was unbelievable.
Just when everyone was shocked, Trunks condensed the Final Flash and interrupted the battle between Super Saiyan IV Goku and Vegeta.
"Goku, Dad, you better stop as soon as possible! We are not enemies, so why do you need to be so serious?" Trunks spoke righteously after interrupting the Ki Blast confrontation. If it was an enemy, fighting with such strength was fine. But they were friends, and there was no need to fight with such power.
"Super Saiyan IV Trunks!! Whoa! It's amazing that Trunks can turn into Super Saiyan IV! Isn't this too powerful?" GT Goku was also very surprised after seeing Trunks become Super Saiyan IV.
In this timeline, he was the only one who could become Super Saiyan IV. Even Vegeta had not touched the threshold of Super Saiyan IV, mainly because his tail had been pulled out long ago, preventing him from transforming.
"Trunks, what the hell are you doing, you brat? This is my battle with Kakarot. Who asked you to intervene? And I almost won just now!" Vegeta cursed at Trunks immediately after the fight was interrupted. Although his whole body felt tired from the battle, he remained stubborn.
"Okay, okay, Vegeta. The situation just now was very dangerous. If Trunks didn't intervene, you would have lost badly. Let's end today's battle here first!" Goku flew in front of Vegeta and said with a smile. Although this made Vegeta very unhappy, what Goku said was true. GT Goku's strength was really too strong. Without Trunks' intervention, he would probably be in a very bad state. However, his arrogance made him scold Trunks.
"And... other me, you are really amazing. To be honest, I really want to fight with you! However, I think it's better to figure out our situation before fighting. For some reason, we traveled to this timeline, but we are the real ones!" Goku explained.
"Ah! I've felt it!" GT Goku smiled. He already knew that the people in front of him were not androids made by Dr. Myuu. Now he was more certain. Afterward, everyone chatted briefly and then returned to West City, as they were very interested in each other's living environment and previous experiences.
...
At the same time, in another timeline of another dimension.
Time Nest
"Lord Supreme Kai, did you ask us to come here for something? You look a little concerned," Xeno Goku and Vegeta asked the Supreme Kai of Time, Chronoa.
Chronoa turned her head, her expression dignified. Recently, she felt that many individuals were traveling through timelines indiscriminately, causing the originally normal and orderly timeline to become disordered. Lately, there was a constant feeling of uneasiness, clearly related to the reckless timeline travel.
"In the past few days, I felt that many people began to travel through timelines recklessly, causing them to become disordered. In just three days, several parallel timelines have already appeared due to their behavior. Now, I want you to find those who are traveling through timelines recklessly, give them a good lesson, and then send them back to their own timeline," Chronoa instructed Xeno Goku and Vegeta.