Middle of The Atlantic Ocean

Ghidorah was struggling to get out of Godzilla's grasp as the giant lizard dragged him deeper and deeper.

Ichi: Godzilla guess what?

Godzilla: What?

Ichi: We don't need oxygen to breathe!!!

Using their heavy weight and momentum, Ghidorah spun Godzilla so that he was about  to hit the ocean floor which he did and with a 150,000 ton dragon on his chest, it was painful.

Ni: How does it feel, bitch?!

What they didn't see was Godzilla's spines glowing blue but they were imbedded in the ground and they didn't realize until they saw the blue light.

Ichi: SWIM AWAY!!! SWIM AWAY!!!

Kevin: Oooo lights!!!

Ni: Swim Kevin!!!

They tried to get far but Godzilla stood on the ocean floor until his Atomic Breath was ready and then he fired.

The Atomic Shot nailed Ghidorah straight in the dick which made the dragon roar in pain at the unexpected aim.

Godzilla: Now you are a bitch.

Godzilla swam up to tackle Ghidorah again but the alien dragon still had a lot of fight in him.

As Godzilla got within range, Ni bit down on his right arm while Kevin bit the left and both delivered an electric bite shock to the wound as Godzilla roars in pain.

Ichi controls their wings and swam back up to the surface where the military were there but they were evacuating.

Diane: Everyone to your Evac Plane, let's go go go!!!

The Soldiers scrambled to their planes to not get left behind until the Weapons Chief reported.

Weapons Chief: The Titans are resurfacing!!!

Diane: TAKE COVER!!!

The ocean bursted open to reveal Ghidorah and Godzilla going at it until the end. Godzilla used his back spines to impale Ghidorah in chest while Ni and Kevin kept biting the lizards arms.

Godzilla: Fucking oversized Dragon!!!

Ichi: Stupid Ass Lizard!!!

Using his heavy tail, Godzilla smacked Ghidorah hard in the side with emitting a couple of crack sounds of broken ribs. This forced Ni and Kevin to let go and tower over Godzilla in rage but Godzilla wasn't intimidated at all.

Ichi went in for a bite but Godzilla grabbed his head and bit down hard on him which made him shriek in pain.

Seeing this, Kevin fired a Gravity Beam at Godzilla's thick ass thigh which made him look at Kevin.

Godzilla: YOU THINK THAT SHIT HURTS?!

Kevin: 

Godzilla: SHUT UP!!!

He then grabbed Kevin and bit down hard on his neck before he ripped the head off and roared in satisfaction. He turned to Ichi and Ni who looked at him in rage, in return, Godzilla grinned with Kevin's blood dripping from his jaws.

Godzilla: Bring it on.

Roaring in rage, Ghidorah smacked Godzilla with his wings which knocked him down but the massive god swam around and rammed him hard. Ichi fired his Gravity Beam at Godzilla's gills which made the lizard roar in pain while Ni bit his throat.

Godzilla swam with Ghidorah as a shield and began ramming them into the military ships and aircraft carriers. Ghidorah managed to free himself from Godzilla's grasp but was hit with an Atomic Breath shot straight to the chest which made them get knocked into the water.

Swimming like a shark, Godzilla used his spikes and speed to graze Ghidorah's side which made blood splirt out and then he slammed his tail against it which emitted more bone sickening cracks and blood.

Ghidorah roared before using his massive webbed feet to grasp Godzilla's head before Ni bit Godzilla but he didn't just bit into his side. Ni pulled back and took a chunk out of Godzilla before going again.

Ghidorah put pressure on his grasp on Godzilla's head who in return rolled forward and back spike slashed Ghidorah's chest leaving giant cuts and the blood made the sea red.

Godzilla swam around the bleeding Ghidorah before closing in on him again and chomping down on Ghidorah's left foot before putting immense pressure until a loud snap was heard.

He then began clawing at the dragon while Ichi and Ni bit and Gravity Beamed Godzilla in his wounds.

The sea around them turned red with the blood of the two bloodthirsty Titans who were tearing each other apart with every hit.

Meanwhile

The Oxygen Destroyer was closing in on the two titans location as it zipped through the sky, clouds and the soon to be destroyed Oxygen.

Godzilla was clawing at Ghidorah who struggled to stay on the surface but was holding there own even though Kevin was dead. 

Ghidorah unleashed his Gravity Beams while Godzilla shot his Atomic Breath, each behemoth dealing possibly fatal blows to the other but none are giving up. 

Ni went in for a bite and snagged Godzilla's neck who roared in rage and stabbed his claws into Ni's head, throwing him down before stomping on the head, killing Ni due to skull fracture.

Ichi roared at Godzilla who swam at him to finish the job, Ghidorah lost both Ni and Kevin with only Ichi left to take the blow. Luckily Ichi had an idea, generating electricity he sent a high voltage into the water which stunned Godzilla a little but it was enough time for Ichi to fly up in the air.

But that didn't last long, Godzilla chomped down on Ghidorah's tail before dragging him back into the ocean, Ichi fired his Gravity Beam but it only grazed Godzilla, not enough to do serious damage.

Godzilla crunched the tail's bones before grabbing Ichi's head and made look into his glowing blue eyes full of hate and rage.

Godzilla: Any last words?

Ichi: I AM A PRIMORDIAL, FOOL!!!

Godzilla: A Primordial who doesn't have the balls to look a god dead in the eye.

Godzilla began to charge up his Atomic Breath at it's full power to finish Ghidorah once and for all but suddenly a loud WHIRR!!! sound was heard from above and Godzilla looked up to see the O2 Destroyer flying towards them and the last thing Godzilla remembered, was a bright white light.