Jichuriki vs Fishman
Arlong was ticked off that his best crew members were defeated.
"I'm going to make you all pay for that," Arlong responded.
"You have to fight me before you fight my friends," Naruto responded.
"Please, you're just a weakling human. I don't have to even touch you to kill you," Arlong responded.
"You want to bet," Naruto responded.
Arlong threw some water at Naruto.
Naruto jumped and avoided the attack.
"Why don't you die like a pathetic human you are?" Arlong asked.
Naruto glared at Arlong.
"Arlong!" someone shouted.
Everyone turned to see Sakura standing there.
"Sakura, what are you doing here?" Naruto asked.
"Just in time Sakura, I am about to crush these worthless pirates to the ground," Arlong responded.
"I've came here to kill you Arlong," Sakura responded.
Arlong burst out laughing.
"You kill me, like you tried to do in the past?" Arlong asked, "You humans don't stand a chance to kill me! Face it, you'll be our navigator forever!"
Naruto clench his fist.
"Listen, if you agreed to continue being our navigator we'll spare everyone in your village," Arlong said, "Except for these pirates, they don't deserve to live after what they have done."
"Don't listen to him Sakura!" Naruto shouted.
"Huh?" Sakura responded.
"If Arlong was true to his word, why did he try to shoot your sister when he promise your mother he wouldn't harm either of you?" Naruto responded, "Why would he send marines after your treasure knowing it would make you have to start over from scratch in saving that money?"
Sakura realize Naruto was right.
"This guy is a lying scum," Naruto said, "He doesn't deserve your talent and skill as a Navigator."
Naruto jumped at high speed and punched Arlong into the ground
"Shadow Clone Technique!" Naruto shouted making the hand signs.
A shadow clone formed on the ground.
"The shadow clone placed his hands on the ground.
"Kyuubi-Kyuubi: Underground Chakra Claw Attack!" the clone shouted.
Multiple Chakra Claws broke out from underground and grabbed onto Arlong
Naruto made some hand signs while aiming at Arlong.
"Wind Technique: Air Bullet!" Naruto shouted taking a deep breath.
Naruto fired an air bullet at Arlong.
Arlong took a direct hit from the Air bullet.
The shadow clone disappeared as the chakra claws disappeared.
Arlong manage to get back up after so many hits.
"You have some skill," Arlong responded, "What are you?"
"Captain Naruto Uzumaki, Jinchuriki of Kurama, the Nine-Tail Fox Demon," Naruto responded, "And I'm just warming up."
"I don't care what you are, you'll give up and die, just like any other insect that upsets me," Arlong responded, "Do you know what the difference is between you and me?"
"Not really, I mean you have sharp teeth, but in my Tailed Beast form I have fangs," Naruto responded.
"It's species!" Arlong shouted and started going for a bite.
Naruto dodge the attack.
Arlong went for some more bites but Naruto dodge each attack.
Naruto fooled Arlong into biting the pillar.
The pillar broke from the force of Arlong's bite.
"Humans are weak, you don't have the force I have," Arlong responded.
"We'll see about that," Naruto responded and made the hand sign, "Kyuubi-Kyuubi Transformation!"
Naruto transformed into Nine-Tail Fox form.
"Now we both have powerful jaws," Naruto responded.
"Don't make me laugh," Arlong responded, "You're still a stupid human, that has no power of his own."
Arlong ran at Naruto full speed.
Naruto jumped up and tackle Arlong before jumping off.
"That won't stop me," Arlong responded.
Naruto jumped at Arlong and hit him in the jaw with one of the tails.
Arlong's teet shatter from the impact.
"How do you like that?" Naruto responded, "Let me tell you something, I lack navigational skills, I can't cook, I don't really know much about other natures, I can't talk to animals, I can't use a sword. But the one thing I do know how to do is fight."
"Really, then you must give your crew a headache," Arlong responded, "How can you call yourself a captain when you only know how to fight?"
"Knowing how to fight is all I need to defeat you," Naruto responded, "Now show me what you can do!"
"You ask for it!" Arlong said as new teeth grew in, "My teeth can grow back stronger than the old ones."
Arlong remove his row of teeth as if they were false teeth connected together, as new ones grew in.
He took out the new set and again another set grew in.
"Do you understand how strong Fishmen are now?" Arlong asked.
"Not really," Naruto responded.
"Killing Teeth!" Arlong shouted coming at Naruto using his hands as if they were jaws opening and closing the rows of teeth in each hand.
Naruto dodge first set of teeth and bit down on Arlong's hand.
Naruto's fangs manage to sink into Arlong.
"Naruto bit Arlong!" Sakura responded.
Naruto spit out Arlong's hand and jumped back.
"Yuck! You taste horrible!" Naruto complained as he tried to spit out the taste.
…
Kiba and Suigetsu burst out laughing at Naruto.
"What was the point of biting Arlong, if you were just going to let go?" Sakura shouted.
"So much for that plan…whatever that plan was," Kakashi thought.
…
"You bit me," Arlong responded.
"Yeah, and you don't taste so great either," Naruto responded.
"You'll pay!" Arlong shouted going for another attack with the teeth.
Naruto jumped out of the way and started darting around Arlong.
"What are you up to now?" Arlong asked.
Naruto swipe his tails as he ran causing the ground to shake.
"This won't work," Arlong responded.
Arlong went to attack but Naruto dodge each attack.
Arlong clench the teeth down on Naruto's shoulder.
"I got you," Arlong responded.
"No I got you," Naruto responded.
Naruto swipe one of his tails and hit Arlong sending him back.
Naruto transformed back into human form with a slightly injured shoulder.
"Now you're injured," Arlong said getting up.
"You really don't get anything about the powers of the Jinchuriki," Naruto responded, "No matter how many times you bite me, in a few minutes my wounds would be fully healed."
"That's impossible," Arlong responded.
"Is it?" Naruto asked and rose one of his hands, "When I was 7, I stabbed this hand with a small sword. (A/N: Prologue chapter)
Arlong dived into the sea.
"Maybe I can fish him out with the Chakra Claw," Naruto thought.
"…because you ate the devil's fruit, the moment you focus you chakra into the balloon, it'll be rejected…" Jiriaya's words echoed in Naruto's head (A/N: 'Mastering the Rasengan' Chapter).
"That's right, my chakra would be rejected if I tried," Naruto thought.
Naruto noticed a fin sticking out of the water.
"That must be Arlong," Naruto responded.
The fin dived into the water and disappeared.
…Underwater…
"No one can compare to my speed under the sea," Arlong said watching Naruto from where he was.
…On Land…
Naruto move his shoulder feeling only little pain.
"My injury is almost healed," Naruto responded.
Arlong jumped out from underwater.
Naruto took the hit as Arlong landed into the building.
"Ouch," Naruto responded.
"Don't think because you got away from one hit, you can avoid me," Arlong responded, "Shark on Darts!"
Arlong jumped at Naruto like a dart.
"Wind Technique: Vortex Shield!" Naruto shouted making the hand sign.
Vortex Shield surrounded Naruto.
Arlong hit the shield with enough force that he broke through the wind resistance.
Naruto dodge Arlong's attack.
Arlong's Nose was dug into the ground as he was sticking up like a dart.
"Shark on Dart!" Arlong shouted darting at Naruto again.
Naruto barely dodge the attack again.
"Naruto, let me help!" Kakashi shouted.
"No! I want to fight this guy alone," Naruto responded.
"Shark on Dart!" Arlong shouted going for a another strike.
Naruto dodge the nose but still took a direct hit.
"I need to transform into Jinchuriki form," Naruto thought.
"Naruto! Arlong is back underwater!" Kiba shouted as Akamaru barked.
"Let us help you Naruto!" Haku shouted.
"I can handle this!" Naruto responded, "Just stay back!"
…
Arlong waited underwater.
…
Naruto transformed into Jinchuriki form, only his chakra was more intense and stronger.
"This is almost like what happened back at Syrup Village," Sakura thought.
"Could the Nine-tails found another way to control him?" Sasuke thought.
Naruto moved his hands in front of him.
…
"Shark on Dart!" Arlong shouted darting toward Naruto.
…
"Wait until he jumps out," Naruto thought.
Arlong darted out of the water at Naruto.
"Kyuubi-Kyuubi Both Hand Chakra Claws!" Naruto shouted.
Chakra Claws surrounds Naruto's hands.
Naruto use the chakra claws to block Arlong's nose.
Arlong forced them into the building.
Arlong jumped off Naruto onto the building.
"Die!" Arlong shouted and darted at Naruto, "Shark on Dart!"
Naruto move his hands in front of him.
"Kyuubi-Kyuubi: Multi-Claw Grab!" Naruto shouted.
Multiple chakra claws shot out from Naruto's hands and arms.
Naruto use them to grab Arlong in mid-air and threw him into the ground.
Arlong opened his eyes which turned into a shark eyes when they're angry.
Arlong grabbed Naruto's leg and threw him into the building.
"What was that?" Naruto responded.
Arlong ran at Naruto full speed.
Naruto made the hand signs.
"Wind Technique; Wind Blast!" Naruto shouted taking a deep breath.
Naruto fired a blast of wind from his mouth.
Arlong dodge it and moved in for a punch.
"Kyuubi-Kyuubi Chakra Claw!" Naruto shouted raising his hand in the air.
Chakra Claw formed, stretch up to the roof, and grabbed hold.
Naruto use it to pull himself up as Arlong punched the wall.
Arlong pulled his hand out of the wall revealing that he grabbed a sword from the room.
The sword was like a long staff with jagged triangle shape blade on one side.
Arlong use the blade to attack Naruto.
Naruto dodge the attacks as fast as he could as Arlong chased him.
…
"At this rate, Naruto won't stand a chance," Juugo responded.
"This isn't good," Choji responded.
…
Arlong had chased Naruto into the Navigation room.
The room was filled with maps, boxes, shelves, and had a desk and chair.
"You better not involve yourself with this anymore, Demon-Boy," Arlong said.
"Why are there so many papers here?" Naruto asked.
"These are maps that Sakura spend 8 years to write. It's not hard for Fishmen to research about navigation, but we can't find a good Navigator. I have sought Navigators around the world, but nobody can write a map as accurately as her," Arlong explained, "She's very talented, and there's no one stupid enough to let such talent go to waste."
Naruto got up but Arlong aim his blade at Naruto.
"Sakura's happiness is to write maps, and that is also part of my dream!" Arlong explained, "And when we have learned everything about the seas around the world, there will be no one who dares to fight us! The world will be my empire! I already accomplish my dream here in the East Blue. A person like you can't use Sakura like I do!"
Naruto grabbed Arlong's blade and stop it cold.
"What happened to Kiribachi?" Arlong thought, "Why can't I move it?"
"Use Sakura?" Naruto responded and gripped the blade with so much force it broke.
"Kiribachi," Arlong responded.
"What do you think Sakura is?" Naruto asked.
"She is the best Navigator I've ever seen. Even though she is a human, she is smart compare to those rat brain humans! Sakura may be a tricky little kitten and a cute one," Arlong explained, "I intend to keep Sakura in this room to write a map for me until she dies, and I will give her food. If she wants any dress, I will buy it for her. I will provide her with everything she wants as long as she continues writing those maps for me! Because we are friends!"
"Kyuubi-Kyuubi Chakra Claw!" Naruto shouted aiming at the desk.
A Chakra Claw formed from Naruto's hand and pushed the desk through the wall outside.
…
Everyone watch as the desk flew out of the building.
They were confuse, including Sakura.
…
"Shadow Clone Technique!" Naruto shouted making the hand sign.
Shadow Clones formed around Naruto.
Each clone threw out every map and anything else they can get their hands on out of the building.
"What do you think you're doing?" Arlong shouted.
…
Sakura watch as everything in the navigation room was thrown out of the building.
She remember how Arlong forced her to write using the things in the room, and punish her when she purposely did something wrong.
"Naruto…thank you," Sakura cried.
…
Arlong tried to attack Naruto but ended up attacking a clone, as it disappeared in a puff of smoke.
Arlong bit down on one of the Narutos.
The Naruto disappeared in a puff of smoke.
"I can't allow this room to exist," Naruto responded.
"Err…" Arlong responded.
Naruto stretch out his right arm.
"Kyuubi-Kyuubi Double Handed Chakra Claws!" Naruto shouted.
Chakra claws formed and surround Naruto's right hand.;
Chakra started spinning in Naruto's hand, forming the Rasengan.
"You stupid demon-boy, you can't defeat me!" Arlong shouted and Darted while spinning at Naruto, "Shark on Tooth!"
"Rasengan!" Naruto shouted extending his right hand with the Rasengan.
The Rasengan hit Arlong and send him flying out of the building.
A/N: I know I normally end the whole island adventure arch on the same chapter I end the battle, but since what is about to happen will be the start of the bounty on Naruto's head, I thought of saving it for the next chapter.