As the summary said, I'm going to do my best to implement Super Saiyan 4 into the DBS arcs. Since I'm only going over Super, this isn't going to be a long story. Just think of it like DBS, but with SSJ4, things won't change too much; this is how I think some of the arcs would go. Hope you enjoy.
The Super Saiyan God?
Beerus The Destroyer has awoken and has already started his job of destroying planets. He then remembers he had a premonition of a rival that would give him a great fight called the Super Saiyan God.
He began his search with Son Goku, who was on King Kai's world at the time. Goku challenged the God of Destruction but ultimately failed to lay even one hit and was taken out in two.
Beerus then sets his sites on Earth, where the Z-fighters are celebrating Bulma's birthday. Vegeta did his best to make sure that the Destroyer was appeased, but Majin Buu didn't get the memo not to piss him off.
It seemed nobody could beat Beerus, that is, until Goku had the idea to ask the Shenron how to bring a Super Saiyan God, and the dragon told them how to do the ritual for it.
They then attempt it, but mere moments before Goku achieves the form, an unknown force intervenes.
"Ooh, this is the perfect change I can make this time," said Fu. "I know I did something similar when Goku and Vegeta reached Blue, but this is a better place to start.
Fu then used one of his crystals to change the course of Goku's transformation.
"This should make things fun!"
Goku was lifted into the air, and the blue light surrounding him turned a harsh yellow. The onlookers shielded their eyes from the light, and what they saw next shocked them.
There was a vistage of what seemed to be a Great Ape, but its fur was gold instead of brown; there was then a sudden roar that seemed to go on for a few seconds.
"Woah, this is getting intense," Gohan commented.
"This is way different than that calming light we saw before," Piccolo said.
The roar and the light died down, and Goku was slowly lifted back down. Everyone was shocked at the drastic change Goku went through.
His hair was still black but a little longer and wilder, his irises were yellow, and his pupils remained black. However, the most shocking part was that his top was gone, and red fur covered his body. Not only that, but his tail was back and was also red.
"Kakarot, is that you?" Vegeta asked, shocked at what he was seeing.
Goku smiles, "I gotta say I'm surprised at how strong I've gotten." His voice was a few octaves deeper than his normal voice.
"Are we sure it worked, though? I still feel Dad's energy." Gohan asked.
"Well, god or not, I at least want some kind of a good fight," Beerus said. "Now come at me, Saiyan."
The two rise into the air and stare each other down.
"Of course I am!" Goku says, countering Beerus' rush, "But I've spent my whole life trying to become the strongest warrior there is, but it's not my strength! There's a power I'll never reach on my own, and I hate that!"
"Then why bother?" Beerus asks.
"Because at least this way, I'll stand a chance against you!" Goku says, beginning his own assault.
"I see; you're addicted to battle!" Beerus says as the battle rages on. The God of Destruction flies into the sky and dives down, his arms raised for a sledgehammer attack, but Goku moves at an exceptional speed, catching Beerus in a headlock. He smiles.
"And now…" Goku says, flicking Beerus on the forehead with his finger, "That's one, and of course…" Goku then delivers a stiff chop to the back of Beerus' neck, "I guess that makes us even."
Beerus breaks free and angrily looks at Goku, "I didn't figure you for the type to hold a grudge! You and your foolish pride, I thought Saiyans would overcome that. You should brush it aside; it'll be your downfall."
Goku smiles, "If it weren't for our pride, we wouldn't be here. You're wrong, Lord Beerus. It's our pride as warriors that drives us to become stronger. Vegeta's obsessed with it; it means a hell of a lot more to him than it does to me."
Beerus smiles, "And yet he made a complete fool of himself to protect everyone else."
"And I respect him a lot more as a result," Goku says, "He knew your reputation, and he set his own pride aside to save the people he loves."
"Just as you set yours aside to achieve this borrowed power," Beerus replies.
"That's right."
"What, why did they stop? Master Roshi says, "They're talking!"
"He's slowly increasing his strength, letting Goku match him," Kami says, observing, "It's like he's...training him."
They all continue to watch the divine battle between Beerus and Goku as their fight eventually leaves the ocean and heads out over land. Each blow thrown between the two deities explodes with a sonic boom, with both becoming completely relentless in their assaults. The battle moves over a wasteland, where Goku charges Beerus, only to be countered with a furious punch. Goku counters it, and the God of Destruction stops for a moment. This gives Goku the window he needs, tackling Beerus and driving him into the ground, causing the pair to fall into a deep underground cavern, crashing into the water.
"I think you should know, Goku, in spite of your impressive effort, I'm not satisfied," Beerus says.
"Why's that?" Goku replies.
"Because I'm nowhere close to using my full strength," Beerus says matter-of-factly.
"Oh," Goku says, smiling, "You mean you're holding back? That's okay; I'm only using about eighty percent of my own power, too!"
"What?!" Beerus says, enraged, "Fine! Try this!"
Beerus charges, but to his own surprise, Goku is still able to hold on his own.
"Are you going to take this seriously now?!" Beerus yells.
"You're going to find out if I am!" Goku says, charging as Beerus counters with a solid punch. Goku is sent flying back, and the God hops back. Goku breathes heavily as Beerus unleashes a massive barrage of ki blasts.
"Hey, you didn't tell me we were using blasts now!" Goku yelled.
"This isn't a game you're fighting to live!" Beerus yells as Goku dodges and deflects, but each deflected ki blast only hits the ceiling of the cavern, causing it to collapse onto him.
"I WILL NOT LET YOU DESTROY MY WOOORRLLD!" Goku yells, powering up and letting out an animalistic roar and charging forward, attacking Beerus again. Beerus braces himself, but just as Goku is about to hit him, the Saiyan vanishes. Beerus then feels a blow from behind.
"Goku's going crazy on him!" Krillin says.
"Kakarot...always hogging the spotlight... and now he's stronger than ever. There's no way I can catch that bastard now, having a once-in-a-lifetime fight. And yet...for this one time, I'm glad it's him in the fight and not me." Vegeta admits.
Goku continues his assault, and while Beerus is holding his own, the God finds himself being driven back further and further.
"You want to use blasts against me?! Fine, play dirty; see what it gets you!" Goku yells as their fight enters Earth's upper atmosphere, "In fact, here's one from me!"
Goku pulls his hands back, powering up a massive 10x Kamehameha and letting loose the bright red beam. Beerus's eyes for a moment go wide in surprise at the sheer energy wave coming at him, bracing himself. Goku only watches as the energy clears, seeing Beerus still floating.
"Let me return the favor!" Beerus yells, firing off a massive Sphere of Destruction at Goku.
If that thing hits the Earth...Goku thinks, flying up to block it.
"You really are quite remarkable, Goku!" Beerus yells, "Despite not being what I thought, you gave me quite the fight in this form."
Goku continues to try to push back the sphere.
"You really are a prodigy, Goku," Beerus says, "Apparently, your body learned from feeling this power, and you were able to maintain it throughout this entire fight, and it pushed you to new heights.
"I'm not sure I'm too happy about that," Goku says, struggling with the energy sphere.
"Why not? After a bit of practice, the power will be all yours, just like you wanted."
"Yeah, but it's not enough to stop this blast!" Goku yells. Exhausted, he drops down to his normal form as the sphere overtakes him until he feels his rage blowing over. In one single moment, he pulls out every raw emotion he has, turning once more into a Super Saiyan "God" as he absorbs the energy. It only lasts a second as Goku reverts to his base form.
"Amazing," Beerus says, "How'd you do that?"
"I'm not sure," Goku answers honestly.
"You're not sure? Interesting," Beerus says as he raises his hand. He glows in a purple aura, but then it stops.
"Why? Aren't you going to finish me?" Goku asks.
"I just want to hear you say it," Beerus says.
"Fine, I give up," Goku says, "There's no way I can beat you, is there?"
Beerus smiles, "And once again, you set aside your pride as a warrior out of respect for the terror that is Lord Beerus the Destroyer. I know strength when I see it, Goku, and you are quite formidable. I've been alive longer than your brain can comprehend, and of every battle I've had, you're the second strongest foe I've encountered."
"Second strongest? I guess that's a great honor," Goku says, "Though I was hoping I'd get to first."
"Don't take it so hard," Beerus says, "You see my attendant Whis? He may wait on me, but he's also my teacher, and he holds the distinction of first place."
"Whis?!" Goku says in amazement, "You mean you're not the strongest in the universe?"
Beerus shrugs, "That depends on which universe you mean. There are twelve in total; I'm the God of Destruction for this universe, the Seventh Universe, but some of the others have spawned warriors mightier than me.
"I see," Goku says. "Does this mean you're not going to destroy Earth after all?"
"I told you I would, and a destroyer god must keep his credibility," Beerus responded.
"Well, it was worth a shot," Goku says, chuckling and then soon passing out.
Beerus grabbed Goku's arm to assist him on the way down. He led him to where his friends were and dropped his beaten opponent.
"Well, then I said I'd destroy Earth, and now it's time to fulfill my promise," Beerus said.
He then raised his hand and started gathering energy but ended up only destroying a few rocks, confusing the group.
"Well, Lord Beerus, you destroyed Earth like you said you would, just not very much of it," Whis said.
"Looks like I used up most of my power during the fight. Guess I'll have to come back another time and destroy the rest." Beerus said.
"Thanks, Lord Beerus," Goku said.
Beerus then apologizes for the trouble he's caused, and he and Whis take off. Everyone returns to Capsule Corp to celebrate Bulma's birthday, and the party resumes. Goku, Piccolo, and Vegeta are seen talking by the lake.
"When you're backed into a corner, Goku, it's almost scary what you're capable of," Piccolo said.
"Listen to me, Kakarot. Next time we need that kind of power, I'm the one who gets to be the god are we clear," Vegeta said.
"Okay that's only fair, though I'll warn you that god power gives you one heck of a hangover, but on the bright you get your tail back at least," Goku said grabbing his own tail. "Oh speaking of power-ups when Bulma got hit you sure went crazy 'My Bulma' that was funny she's quite the motivator for you I'm impressed."
"My hero," Bulma said.
"W-what that's ridiculous I don't remember saying that," Vegeta stammered. "And that's hardly what matters, in that great moment I surpassed you Kakarot!"
"Yeah you definitely did," Goku started. "Guess the next time we fight someone that strong we'll just get them to slap Bulma and we'll be all good right?"
"Grr THAT'S REALLY FUNNY!" Bulma yelled before slapping Goku.
"How'd you know about Vegeta's power-up, I thought you weren't here yet?" Piccolo asked before he realized. "You already by Instant Transmission, you were watching the fight, weren't you?"
"Uh maybe," Goku admitted. "Sorry okay, I was studying Beerus's moves and trying to come up with a strategy to beat him. True I didn't think of any, but is that the point?"
"Bulma I believe Kakarot deserves more of your signature slaps," Vegetal told her.
"He sure does," Bulma said bringing her hand back.
"Hey come on I'm sorry I admit I was wrong, that counts for something rig-," Goku said before he got hit with a barrage of slaps.
Well, Battle of Gods is done now for the rest of Super.
If you have any questions I'll try and answer them as best as I can. I'll also go into some more information on how Goku and Vegeta reach these forms in the next chapter.
Anyway, I'll see y'all later.
