Is there a limit?

(3rd Person POV)

"Come you two ... Give stimulation to my existence. That's why I'm here!", Boros says. 

*BAAM*

Saitama casually punches Boros and he goes flying into a pillar. 

"Are you stupid? You can't just go around attacking other planets just to liven up your boring life. Even telemarketers wouldn't think that.", Saitama says. 

Oetsu is standing to the side watching the two of them. He is interested in fighting as well. He was not able to see the punch land, so he still needed to grow more powerful. 

Boros stands and as he stands there, his armour breaks into a thousand pieces. 

"This set of armour, used to seal in my immeasurable, irresistible power ... has finally been broken.", Boros says.

"OK." "OK" 

Boros then begins to transform. His skin which was light blue, now begins to change into a darker blue and turquoise lines shine all over Boros' body. A giant wave of his energy emanates from him and blows almost everything away. 

"It's time!", Boros says and then speeds towards the two. His figure disappears for Oetsu, who can't see him anymore. But he can feel him right after that as a fist lands on his face and obliterates his head. The rest of his body flies away and AGAIN splatters on a wall. That was the third time today. 

Boros doesn't care about Oetsu though and continues with Saitama. he punches him with his right fist. Saitama blocks it though without much difficulty. Boros continues for a few hits to land one with only his right arm. 

All of the hits are blocked by Satiama and so, Boros uses his left as well. He punches Saitama who goes flying a bit. Saitama does some fast but light steps backwards as Boros continues his assault. 

They fly through the air as Boros tries to hit Saitama from every direction. He, however ... still only blocks each attack. Both of them hit opposing pillars and rush towards the other. Saitama finally punches for the first time and it results in Boros losing an arm. 

The 'top fighter of the universe' looks stunned at that. 

"Though my true power has been unleashed ... you are still able to keep up. Unlike your friend who was killed in my first attack."

"Yeah. You're pretty strong too. But you shouldn't under-", Saitama says as a fist hits Boros in the face. 

*Bam*

"Ahaaa! I'm back you Cyclops. Come on!", Oetsu says as he stands there. 

Boros' head didn't even move ... he looked unpleased at this development. He looks at Oetsu and then punches with his left arm. Oetsu doesn't manage to dodge in time and also doesn't fully block it. He gets hit in the head again and is sent flying. 

Boros then looks at Saitama and the two continue to fight. Boros punches with his left arm over and over again. Saitama doesn't retaliate and only catches all the punches with his hands. 

The two begin to flash all over the place, with Saitama running away and dodging and Boros following him and attacking. They clash multiple times and their energy leaves pink and white traces in the air. Finally, Boros manages to get the 'upper hand' and punches Saitama through a pillar and into another one. 

Saitama shoots off and breaks six pillars before his body is slowed down.

.

Boros increases his speed again and shoots towards Saitama, who is still embedded into the pillar, feet first. The speed heats the air and the pillar of the spaceship ... melts as the attack connects with Saitama's body.

But Saitama isn't finished ... not even close. He continues to jump in a zig-zag pattern away from Boros whose speed leaves a flame behind him. Both of them run up a pillar and punch each other hundreds and thousands of times. Their fight continues until they reach the roof of the spaceship and land on top of it. 

"Nice moves. Just as I thought, you are strong. Of all the myriad beings I have fought, only you ... have survived this long!", Boros says as he seeingly powers up his blue energy, "Now I to release the destructive energy held within me!"

Boros fires a laser from his chest. The giant energy beam hits Saitama.

"Any normal creature hit by it would find their bones vaporized!"

*BOOOM*

"Behind you!", Boros says and flashes behind Saitama, who is still unhurt by any of this. He hits Saitama with the back of his fist creating a big shockwave that clears the fire in the surroundings. 

"You were a worthy opponent ... but the outcome of this battle is clear.", Boros says.

"Not true ...", another voice says, "... I also managed to survive this long. But you are correct ... the outcome of this battle is indeed clear."

Oetsu is back ... again and he looks pissed. His eyes are closed right now and he walks towards Boros who is in the middle of a speech. Boros narrows his eyes. He is unhappy that his fight with Saiama is interrupted by this ... weakling.

.

"You seem to possess a great healing factor as well, just like me. But that won't be enough to defeat me at all. You're not even capable of keeping up with me.", Boros said.

Oetsu cracked his head and got into a fighting position. 

"Try me, punk."

"As you wish. This shouldn't take too long anyway.", Boros said and then flashed to Oetsu. He pulled his left arm back and then punched Oetsu again. He was surprised, however. Oetsu hadn't even moved his head out of the way. The fist collided with his head ...

But ... it didn't do any damage!! That was a first for Boros. He was sure that he had one-shot Oetsu the first time and then killed him the second time as well. So what was this? How was he not even moving the man in front of him?

"You ... "

"What is it? Is the 'Denominator' of the Universe having trouble calculating this? Well let me help you.", Oetsu said and grabbed Boros' arm with his right hand and pulled him closer. 

Then he punched with his left fist right into Boros' face. This time, Boros felt it. His head snapped back and he almost lost his balance. He caught himself though and then looked at Oetsu, who wasn't idle and attacked again. This was a fight to ... well the death ... for Boros at least. 

.

Boros blocked the punch and delivered one of his own. Oetsu managed to block and retaliate. Boros increased his speed and managed to hit multiple times but that wasn't something that lasted. His hand was grabbed by Oetsu who had a smile on his face. The blood that was flowing down his face was sucked into his body again.

He was continuously getting stronger. This baller should have killed him when he had the chance ... which was never, true. But now, Oetsu was getting the hang of this high-speed fighting and was getting more and more excited. 

Oetsu continued with the fight. He punched the conqueror in the face again and again. Boros didn't let that slide though and increased his speed and strength to new heights. He could not get around this situation. It wasn't possible. How was this warrior built? How was he keeping up with him the longer they fought?

Oetsu was having the time of his life right now. He was the one who was reacting but that wasn't a problem for him. He could feel himself adapting to Borors' speed and strength the longer they fought.

.

Boros was using his top speed right now and all of his strength. But it just wasn't working. His adversary could keep up right now and that was when he punched him around the place a moment ago. 

Boros clenched his jaw and tried to increase his speed again. But then something happened that he had never expected He suddenly seemed to lose his balance and stopped punching for a moment. He looked down at his body and saw ... nothing!!!

His left arm was gone!! 

Oetsu was holding his arm and then ... it was slowly disappearing into Oetsu. What?! Well, what happened was that Oetsu used the ability he had gotten from the Whitelight virus to absorb the biomass that used to be Boros' arm. 

"Not quite what I expected to be honest. Normally it is custom to taste like chicken no? But it doesn't taste like chicken ... how surprising.", Oetsu said. 

"Do you think that because you managed to rip off my arm, that you won? My species won the struggle to survive ... amidst the harsh environment of our home world. We possess the ultimate in regenerative abilities. I, in particular, have self-healing power ... physical prowess and latent energy beyond your conception. A deep wound that would be fatal to you ... heals itself on me in mere moments. By focusing all my energy on my destroyed arm ...I can explosive speed up the healing process.", Boros says.

Oetsu sees both arms of Boros are regenerated and are like new ones.

"Good as new! Normally I would say that you only get more injured but it would appear that you as well ..."

"Shut up! My goodness, you sure talk a lot for someone who is good with numbers. Are you done with this?", Oetsu says.

.

"Not yet!", Boros says and begins to power up again. His aura turns from blue to purple and his body takes on a very light purple or even pink colour. He bends in an unnatural position and then ...

"Meteoric Burst!"

In an instant ... an instant ... Boros is in front of Oetsu and punches him square in the face. The energy that is released by that punch begins to melt the top of the spaceship and the aliens inside die by the hundreds.

*BOOOOM*

Oetsu's face is turned inside out. Like literally. His head has a hole and the parts of his face that are still there are now looking through himself... His body shoots through the air like a falling star. But he doesn't get a break. Boros flashes to his position and with speed that goes beyond what he showed before, he punches Oetsu from all sides.

The speed at wich he moves right now is so fast that the places where they pass, the metal of the spaceship turns into a fluid state, similar to lava. Boros punches Oetsu all over the top of the spaceship and continues to destroy the ship more and more.

"The energy shunted from my body transforms into a propelling force... elevating speed and power to a level beyond the limitations of the living flesh!", Boros says and punches Oetsu with both his hands into from the air down.

Before Oetsu can hit the ground though, Boros flashes there and then speeds back up to meet Oetsu in between and delievers a powerful knee to his midsection. The force of that knee strike was enough to shoot the flesh that was Oetsu to the moon... The stump of Oetsu's thorax collided with the moon and made a crater.

.

.

(Oetsu POV)

Wow ... that was unbelievable ... I can't imagine that my head was disintegrated when he punched me the first time ... and now I can endure attacks of this magnitude. I wait as my body is regenerated in breakneck speeds. I noticed that it got faster. The speed at with I regenerate is getting faster the more I have to do it.

Boros is quite the monster to be able to use his energy and boost his strength and speed to such degrees. I must say ... I am enjoying myself. I can say with certainty that I don't have a limit to what I can adapt. At least not from what I can tell. I am adapting to the lack of air as I am lying here in the crater.

What a broken character I have become. I love it.

Now ... I believe it is time for me to return, otherwise Saitama will finish the math teacher off before I can. I think this would become a running gag if I wasn't going to kill him today. How sad ... anyway.

.

.

(3rd Person POV)

Oetsu bends his legs and uses his strength to shoot towards the earth. At the same time on the spaceship, Boros is heaving. He looks at Saitama who has been watching the two fight.

'Doing this, places enormous stress on my body ... similar to anaerobic exercise. As a result, it shortens my life. Therefore it should only be used as a trump card for settling fights quickly.'

Boros looks at Saitama and then adresses the man.

"Well then Saitama ... shall we finish our fight as well?", Boros asks but sees that Saitama is not paying attention. Saitama is looking into the sky. Boros is confused and also looks up, only to be surprised when something crashes with the spaceship and an explosion is heard.

*BOOM*