Requested by UltimateDestoroyah

When giant monsters go all out, all hell breaks loose.

Godzilla

Atomic Beam.

Fireball.

Atomic Fire.

Red Spiral Ray.

A red and more powerful version of his Atomic Beam.

Nuclear Pulse.

If Godzilla's mouth is closed before he fires the Atomic Beam; the beam instead detonates within Godzilla himself. It creates a shockwave that strikes anyone near Godzilla. Godzilla himself is not seriously harmed by this explosive force as his body is designed to create this atomic energy.

Physique

Godly strength.

Uncanny durability.

Sharp dorsal plates.

Can breathe underwater via gills.

Sharp Teeth.

Sharp Claws.

Burrowing.

Bashing Tail.

Feats

44 wins, 9 losses, 7 ties.

Battled Rodan for 12 hours.

Has defeated his arch rival King Ghidorah multiple times; including Kaiser Ghidorah.

Destroyed his more powerful clone, SpaceGodzilla.

Destroyed Magita, the Queen of the Trilopods and a monster so massive that she completely dwarfed Godzilla and his allies.

Fought against an army of MechaGodzilla Drones and Mecha-King Ghidorah, alongside Anguirus

Defeated 10 monsters in a row in Final Wars.

Easily defeated Kumonga and Kamacuras.

Defeated Rodan, Anguirus and King Caesar at the same time.

Killed both Hedorah and Ebirah at the same time with ease.

Effortlessly defeated Zilla within 15 seconds

One of the strongest kaiju in his franchise.

Threw the 30,000 metric tons Kumonga clear over the horizon.

Lifted & threw Keizer Ghidorah who is 100,000 tons.

Survived being smothered by a pool of Hedorah's acidic sludge

Survived 4 years frozen in an ice berg in (Godzilla: Rulers of Earth).

Survived & escaped a black hole.

Survived the Absolute Zero Cannon.

Survived a meteor point blank without a scratch.

Spent 5 years in a volcano.

Swam through the Earth's core

Survived the extinction of the dinosaurs

Weakness

If second brain is destroyed than Godzilla will be paralyzed and immobile.

Can be immobilized by certain artificial diseases, heavy blizzards or freezing attacks, UFO tractor beams or Mothra's silk.

Hedorah's poison easily burned through Godzilla's hand and eye and Hedorah's smog almost suffocated Godzilla.

Vulnerable to strong surges of artificial electricity

Gills and armpits are weak spots

Sensitive to light

Somewhat clumsy and slow due to size

Has been knock-out by Jet Jaguar (with one punch).

Doomsday

Immense strength

Superhuman durability

Rapid healing factor

Quickly adapts to his foe's attacks

If killed, will revive immune to cause of death.

Has no internal organs, can survive without food or air.

Can grow and extend poisonous bone spikes that can pierce Kryptonian skin.

Super Speed

Millions of years of combat experience.

Feats

Survived Darkseid's Omega Beams

Battled Gogs nonstop for 100 nonstop years

Survived a one million nuke equivalent explosion

Defeated the Justice League

Can tunnel through the center of the Earth

Defeated the Green Lanterns and Darkseid

"Killed" Superman.

One of the tankiest nigh-invincible characters in DC Comics.

Survived some of the most powerful weapons in DC including the Soultaker Sword and the Sword of Athena.

Took dozens of unrestrained blows from Superman before being killed.

This was before becoming immune to this method of blunt force trauma: Doomsday is now immune to punches of any magnitude of strength.

Relatively unharmed from falling into lava.

Can tunnel through the center of the Earth by bashing his opponent's head in with his fists

According to Booster Gold he's faster than the Flash

Revived from death multiple times; including from attacks from godlike characters.

Revived after being killed by Imperiex's cosmic blasts, despite Imperiex being 'as powerful as the big bang' and that blast destroying all of Doomsday's flesh: reducing him to a skeleton.

He is viewed by many in the DC Universe to be Death personified

Weakness

Some of these defeats were done by unconventional means; like imprisoning Doomsday or sending him to a distant galaxy, dimension or time period.

Possibly can be permanently killed by sending him to the end of time.

Can be restrained if encased in a hard substance or not allowed to move (although he does eventually escapes his restraints.)

Can be (temporarily) killed by an attack he never survived before if it overwhelms his defenses and healing factor.

This means younger depictions of Doomsday are significantly weaker than his current depiction; as they don't have the same history of adaptation.

Predictably and obsessively focused on killing other lifeforms; perusing them endlessly no matter the risk. Doomsday sometimes ignores a fight to murder innocent or defenseless animals or humans. Doomsday thinks of nothing else other than mass murder.

Literally mindless; Doomsday ignores strategy and instead always charges fearlessly and recklessly into battle. He can be easily outsmarted or led into a trap.

Can still feel pain and be knocked out despite his lack of a brain.

Doomsday is mentally traumatized by the 1000s of deaths he experienced during his initial 30 years on prehistoric Krypton.

Doomsday is at his weakest when deprived from sunlight for long periods of time. This is why the Calaton Containment Suit was able to imprison Doomsday for so long: his coffin blocked out sunlight.

Sometimes vulnerable to mind-control.

Despite being virtually invincible in the longterm, Doomsday has a history of being defeated by Superman multiple times.

Punched to death and ripped in half by Superman.

Has been killed or KO'd by Radiant's energy attacks, the Superman Family's multiple Heat Vision blasts and incinerated by Imperiex.

Fight

Superman pants in exhaustion as he faces off Godzilla.

As the two glares at each other, all of a sudden, Doomsday leaps out of nowhere and he slams into Superman, knocking him out.

As Superman lies on the ground unconscious, Doomsday turns and he saw Godzilla roaring at him.

There's something about the new comer that seems a bit, off.

Doomsday growls and he said to Godzilla.

Doomsday: Heh heh. You're fighting me!

Doomsday leaps at Godzilla and hits him in the chest knocking back him back slightly Godzilla grabs him with his hand and attempts to crush Doomesday with his fists but Doomsday bites his finger ripping part of it off Godzilla lets go in pain

Doomsday falls to ground and grabs a lorry and tosses it at Godzilla who knocks it aside with his tail and shoots a Atomic Breath at Doomsday who is hit in the back with it Doomsday then punches Godzilla in the knee causing blood to drip out

Godzilla knees Doomsday in the chest and is knocked back but quickly swings on a lamppost and leaps towards Godzilla's face where he uppercuts him and Godzilla attempts to Grab Doomsday who doges and punches Godzilla again

However Godzilla releases a Nuclear pulse that levels several buildings but Doomsday continues punching unscathed

Doomsday: Rhargghaha

Godzilla then swings his tail at Doomsday who is knocked through a building and into the ground causing a massive crater Godzilla roars and attempts to step on Doomsday who manages to stop himself being crushed and throws Godzilla into the ground several buildings and skyscrapers collapse and a massive shockwave is released

Godzilla stands up only to see Doomsday leaping towards him and the two exchange punches and kicks but Suddenly Godzilla fires a red spiral Ray at Doomsday but it does nothing Doomsday flies towards Godzilla's face and punches him several times blood and scales flying everywhere

Doomsday then lifts Godzilla into the air as Godzilla falls back to the ground he fires an Atomic breath causing a massive Nuclear shockwave obliterating Metropolis Doomsday and Godzilla throw tonnes of flying buildings at each other the buildings smashing upon impact of hitting each other

Doomsday then leaps at Godzilla and punches him but is hit by several smacks of Godzilla's tail and Godzilla slashes at him and knocks him into the air falling into Godzilla's mouth who begins to chew on Doomsday cracking his bones

Doomsday pries Godzilla's mouth open and he punches Godzilla back

Doomsday: It will take more than that to kill me!

Doomsday then leaps in the air and punches Godzilla in the face, causing Godzilla to stumble back. Doomsday hops on a building and tries to punch Godzilla in the face, but the King of the Kaiju grabs him and starts smacking him around before throwing him into a building.

Doomsday: GRAR!

Doomsday dodges a few Atomic Blasts and starts climbing on Godzilla's body. When he gets to Godzilla's neck area, he starts punching it like crazy, causing Godzilla to roar in pain.

Doomsday is then knocked off of Godzilla and hit by his tail, knocking Doomsday on the top of a building. Godzilla then fires a Red Spiral Ray, which blows up Doomsday. Godzilla roars in victory, only for a Red Spiral Ray to hit him back.

Doomsday: You though that would kill me? I can regenerate and adapt!

Doomsday then glides at Godzilla and punches him in the face. Godzilla recoils and headbutts Doomsday, causing him to fall into the ground. Godzilla then lifts a building and throws it on top of Doomsday, crushing him.

Godzilla then fires a gigantic Atomic Blast at the building, causing the building to blow up on Doomsday's face. Godzilla starts to walk away, but then is punched in the back.

Doomsday: I will murder you!

Doomsday then grabs Godzilla's tail and starts swinging him around Mario 64 style before throwing him into the water, where it almost seems as if Godzilla had drowned.

Doomsday: MWAHAHA! Looks like I am superior!

But suddenly, Godzilla walks out of the water with an angry look on his face.

Doomsday: Grr?!

Godzilla roars in rage and he charges up a Hyper Spiral Ray.

Godzilla then fires his attack at Doomsday. Doomsday roars in anger and he fires an Atomic Blast to counter Godzilla's attack.

The two blasts collided and they got into a beam clash.

Doomsday roars in anger and he attempts to push Godzilla back but Godzilla narrows his eyes and he fires more power from inside his jaw.

Doomsday: What?!

Godzilla roars as his Hyper Spiral Ray began pushing Doomsday's Atomic Blast back.

Doomsday roars in pain as the combined beams struck him hard.

Doomsday roars as his entire body swells before it begins disintergrating.

The entire blast exploded and Doomsday's entire body is obliterated.

Godzilla watches the explosion die down and he roars in victory, victorious from his battle.

With his enemy defeated, Godzilla began heading back into the ocean, only to find the Justice League surrounding him.

KO!

The winner is

Godzilla

Advantages and disadvantages

Godzilla

Larger
Stronger
More powerful
Smarter
More durable
Capable of holding his own against Doomsday
Slower
Not able to keep up with Doomsday's speed

Doomsday

Faster
Durable
Capable of dodging most of Godzilla's attacks
Capable of harming Godzilla
Smaller
Not very bright
Charges in blindly
Weaker

Up next