Ultraman and Godzilla, two of the Earth's and even the Universe's or better yet the Multiverses Mightiest Protectors. They've proven that they are the Defenders of Peace but what happens when the Formula of Ultraman and Godzilla are mixed with Evil?   

Spacegodzilla

Corona Beam

Telekinesis

Flight at Mach 4

Can conduct energy through his touch

Can summon a crystal shield

Regeneration

Can summon crystal spires to increase his power

Can unleash bolts of energy from his shoulder crystals

Can emit an aura that causes electric disturbances

Can implant cosmic power in structures that can transmit a signal and them act as an energy source

Feats

Defeated Godzilla in their first battle

Destroyed M.O.G.U.E.R.A

Kidnapped Godzilla Junior

Took on Godzilla and M.O.G.U.E.R.A

Absorbed the energy of a Supernova

Destroyed multiple planets (Manga)

Threw M.O.G.U.E.R.A with his tail, who weighs 160,000 tons

Defeated Gigan, Titanosaurus, Battra, M.O.G.U.E.R.A and Godzilla

Weakness

Dependent on getting energy from the crystals he creates.

Weakens if his shoulder crystals are destroyed.

Heavily disadvantaged in melee combat due to his heavy build and comparatively short arms.

His crystal constructs can energize his opponents as well

Insane

Ultraman Belial

Ultra Armour

Dark Ultra Powers

Martial Arts Skills

Absorption 

Spirit Form

Deathcium Ray

Kaiser Belial Claws

Beam Reverse

Giga Battle Nizer

As Belial is a Reionyx, he possesses a giant polearm Battle Riser called the Giga Battle Nizer.

Belial Shot: An energy bullet attack, made when Belial used the Giga Battle Nizer in a similar manner to a handheld shotgun.

Belial Death Scythe: A scythe blade-shaped beam.

Belial Geno Thunder: A lightning bolt.

Belial Whip: An energy whip.

Belial Black Hole Thunder: The technique has Belial "inhale" enemies into the Giga Battle Nizer, empowering it enough to release multiple Geno Thunder attacks far and wide

Revival: It's possible that can revive monsters while in the Monster graveyard.

Belial Monster Army: As a Reionyx, Belial is able to summon monsters. His Giga Battle Nizer, storing hundreds of the following monsters: Alien Shaplay, Dorako, Bemstar, Salamandora, Black King, Mukadender, Frogos , Gromite, Angross, Zoa Muruchi, Eleking, Banpira, Gan-Q, Alien Metron, King Gesura, Twin Tail, Magular, Antlar, Alien Zetton, Narse, Alien Babalou, Alien Magma, Alien Nackle, Dada, Lunatyx, Jasyuline, Nova, Doragory, Alien Baltan, Gomess, King Silvergon, King Goldras, Roberuga, Kelbeam, Hoe, Alien Pressure, Alien Reflect, Arigera, Birdon, Red King, Galberos, Earthtron, King Pandon, Velokron, Sadora, Super Alien Hipporito, Telesdon, Vakishim, Alien Temperor, Gudon, Alien Valky, Fire Golza, Alien Guts, King Joe Black, Zetton, and Tyrant.

Forms

Beryudora: An exo-armor Belial creates by merging the corpses of over 300 monsters killed by the Ultramen and placed in the Monster Graveyard. Belial fuses himself onto Beryudora to serve as its brain, controlling it with his Giga Battle Nizer. With its components able to act individually, the entirety can fire beams from their eyes in the Beryudora Inferno attack.

Arch Belial: A dinosaur-like form Belial assumed from absorbing large quantities of Esmereldan Emeralds, able to use his arc Death Claws and drain energy from his victims. His signature attack Arc Deathcium Ray is powerful enough to obliterate a planet.

Kaiser Darkness Belial: Possessed an Armored Darkness, acquiring many of its abilities with heightened durability, Belial is armed with the Darkness Trident and Darkness Board sword. His signature attacks are the Rezolium Ray and the even more deadly Giga Rezolium Ray.

Zero Darkness: A form Belial assumed while possessing Ultraman Zero, possessing many of Zero's abilities along with original attacks like Deathcium Shot.

Feats

Before becoming evil, Belial fought in the Great Ultra War against Alien Empera alongside Father of Ultra/Ultraman Ken.

Attacked the Land of Light with his monster army during his first attack.

Killed Alien Zarab.

Defeated Ultraman Taro when escaping space prison.

Invaded the Land of Light a second time, defeating numerous Ultra Warriors on the planet: Ultraman, Ultraseven, Ultraman Jack, Ultraman Ace, Father of Ultra, Mother of Ultra, Ultraman 80, Ultraman Chuck, Ultraman Sott, Ultrawomen Beth, Yullian, Ultraman Great, Ultraman Powered, Ultraman Neos, Ultraseven 21, Ultraman Max, Ultraman Xenon and Ultraman Hikari

Took the Land of Light's artificial sun: The Plasma Spark. This caused the Land of Light to turn into a frozen wasteland, freezing the defeated Ultras (except Ultraman, Ultraseven and Ultraman Mebius).

Revived his monster army at the Monster Graveyard.

Defeated Rei's Gomora and Litra.

Corrupted Reimon by the darkness of Reiblood, making him enter Burst Mode.

Killed Ultraseven

Overpowered Ultraman Dyna

Under the alias of Kaiser Belial, he established the Belial Galactic Empire.

Conquered the world Esmeralda in another universe and injected Negative Reiblood energy into its protector, Mirror Knight.

Shrugging off Mirror Knight and Jean-bot as Arch Belial.

Exhaust Ultraman Zero to the point of death as Arc Belial.

Founded the Darkness Five

As Kaizer Darkness Belial, overpowered Ultraman Zero Strong Corona mode.

Destroyed Ultimate Force Zero's base

Fused with Ultraman Zero's body and controlled him, becoming Zero Darkness.

Killed Jean-Bot

Cut Jean-Nne in halve.

Killed Mirror Knight

Killed Glen Fire

Commanded two armies in his life time: 100 Monster Army and Belial Galactic Empire.

Detonated a Super-Dimensional Eradication Bomb during the Crisis Impact, turning Earth into the epicenter of a black hole that sucked in the entire universe. The event was undone by Ultraman King.

Weakness

As with other Ultra's, Belial is weak to freezing attacks.

Is not as powerful as Zero's Ultimate form, Shining Zero

The Giga-Battle Nizer can be controlled by other Reionyx like Reimon

Some of his monsters can be easily killed.

Fight

Deep Space

Deep in the dark vacuums of space, Ultraman Belial flew across the dark void, surveying the planets around him.

As he stares planet to planet, Ultraman Belial said to himself.

Belial: Uranus, Venus, these planets shall soon tremble under the heels of Belial!

However, right at that moment....

???: SKRREEEEEEERRNTT!!!

Upon hearing the loud roar, Belial looks up.

Belial:  Hm? ...there's something else here...

The evil Ultra looks around and he demands.

Belial: Who are you? Show yourself!

Belial's calls were answered with a loud roar from behind.

???: SKRREEEEEEEERRNTT!!!

Belial: ...Hmph

Belial spun around and before he could react, a large reptilian creature covered in large space crystals swoops downwards, heading right towards him.

WHOOSH!!!

Belial ducks to the side, dodging the creature's attacks before facing him.

Just as the creature halts in the dark void, Belial studies the monster.

The monster is a large biceptal reptilian creature resembling a dinosaur with large crystal spikes around his body.

He is SpaceGodzilla, the evil spatial clone of Godzilla!

SpaceGodzilla: SKREEEEEEERRRNNNTTTT!!!!

Belial: What is this monstrosity?

SpaceGodzilla: SKRRREEEEERRRNNTTT!!!

WHOOM!!!!

SpaceGodzilla's crystals began glowing brightly before the evil Godzilla clone open his jaws, unleashing a powerful torrent of energy right towards Belial.

KABOOM!!!

The projectile strikes into Belial, causing a massive explosion.

SpaceGodzilla: SKREEEEERRNTT!!!

As the smoke clears, Belial looks up and he questions out in fury.

Belial: You think You can be a Ruler of Darkness? I'll show you what True Darkness is Like

FWOOSH!!!

Belial swung out his arm, launching a stream of fireball right at SpaceGodzilla.

SpaceGodzilla: SKREEEEERRNNTTT!!!

SHING!!!!

SpaceGodzilla quickly summons out several crystals, creating a shield around him.

Right at that moment, the fireballs strikes into the crystals, causing a massive explosion upon contact.

KABOOM!!!

SpaceGodzilla: SKREEEEERRNNTTT!!!

WHOOSH!!!

SpaceGodzilla roars out in fury and he flies upwards, flying right towards Belial.

Belial: I don't think so!

Just as Spacegodzilla closes in, Belial swerves to the side and he clenches his fist, throwing a straight hook right into SpaceGodzilla's cheek.

WHAM!!!

SpaceGodzilla: SKREEEERRNNTTT!!!!

SHOOM!!!

Belial swung his arm out, summoning his Belial Whip before cracking it downwards, striking right into SpaceGodzilla.

CRACK!!!

SpaceGodzilla: SKRREEERRNNT!!!

Belial shifts his arms in a T shape, launching a powerful Deathcium Ray forward.

VEEEEEE!!!!!

SpaceGodzilla looks up and he opens his jaws, unleashing a powerful corona beam out of his mouth.

THOOM!!!!

BOOM!!!

Both projectiles strikes right into each other, creating a massive explosion, blasting both monsters back.

Ship

Meanwhile in a spaceship, Supergirl pushes herself out of bed and she questions to Lena who was lying next to her.

Supergirl: Did you hear that?

Lena: Uh no, you can't really hear anything in space.

Supergirl looks out of the window and her narrows in suspicion.

Outside, several crystal shards drifts past the ship, tapping into the glass window.

Supergirl said to Lena.

Supergirl: I'm still pretty sure something is happening out there. My super hearing is never wrong.

Lena wraps her arms around Supergirl and she said to her.

Lena: Aw come on, there's nothing to worry about. Come on, I want you right here right now.

Supergirl smiles and she shrugs to herself.

Supergirl: Oh well, come here you.

SMOOCH!!!

Supergirl plants her lips right into Lena's, ignoring the battle outside.

Space

SpaceGodzilla: SKRRREEERNNTT!!!

SHOK!!! SHOK!!! SHOK!!!

SpaceGodzilla roars out as he launches several crystal spikes outwards.

Belial swung his claw across, shattering the crystals with a single devastating blow.

CHING!!!!

SpaceGodzilla: SKRRRREEEEERRNTT!!!

SpaceGodzilla swung his tail across, slamming it right into Belial's face.

WHAM!!!

Belial: ARGHHHHHH!!!

WHOOM!!!!

SpaceGodzilla's spikes began glowing out and he opened his jaws, unleashing a powerful torrent of corona beams right at Belial.

KABOOM!!!

The blast strikes right into the evil Ultra, creating a massive explosion.

As the smoke drifts across the deep space, SpaceGodzilla lets out a loud roar, thinking he had won.

SpaceGodzilla: SKRRRREEEEERRNTT!!!

However, without warning, three figure bursts out of the smoke causing SpaceGodzilla to look up.

SpaceGodzilla: Gr?!

SpaceGodzilla flies back just as three monsters of different shapes and sizes closes in roaring at him.

Kaijus: DRRROOOOAAARRR!!!

SpaceGodzilla: SKRRREEEEEERRNNNTTT!!!

SpaceGodzilla summons severals crystals shards and he launches them downwards, sending them flying towards the monsters.

SHOK!!! SHOK!!! SHOK!!!

Kaijus: DRROOOOARRRR!!!

The Kaijus roars out in agony as they falls back, severely wounded by the attack.

WHOOM!!!

THOOM!!!

SpaceGodzilla unleashes a powerful torrent of his corona beams right at the monsters, causing them to go off in a massive explosion.

KABOOM!!!!

SpaceGodzilla: SKRRRREEEEEERRNNNTTT!!!

???: Is that all?

SpaceGodzilla spun around and before he could even react, he felt something sharps slice right across his neck.

SLASH!!!

SpaceGodzilla: SKRRRRREEEERRNNNTTT!!!

Belial:  You Will Obey!

SpaceGodzilla felt himself getting disorientated, his mind swimming as everything became blurry.

Realizing SpaceGodzilla's predicament, Belial laughs out.

Belial: Neh heh heh heh! You foolish creature. I have injected you with my virus. In a matter of seconds, you shall be under my thrall!

However, SpaceGodzilla looks up and he opens his jaws, launching a corona beam right into Belial.

THOOM!!!

Belial: ARGHHHHH!!!!

SpaceGodzilla: SKREEEEERRRNNTTT!!!

SpaceGodzilla summons several crystals and he launches them forward, sending them flying right towards Belial.

SHOK!!! SHOK!!! SHOK!!!

However, Belial quickly whips out several Esmereldan Emeralds and he wraps his hands around the Emeralds, deeply absorbing the power within them.

WHOOM!!!

Just as the crystals closes in all of a sudden....

FWOOSH!!!!

Belial: NEH HEH HEH HEH!!!

Belial unleashes a powerful torrent of energy, completely incinerating the crystals.

As SpaceGodzilla looks up, realization struck him as he notices a massive change in Belial's appearance.

Unlike before, Ultraman Belial now possesses a reptilian figure with large razor sharp claws.

Belial has transformed into Arch Belial!

Arch Belial chuckles out and he said to SpaceGodzilla.

Arch Belial: At last, you have absolutely no chance of defeating me.

SpaceGodzilla: SKRRRREEEEEERRNNNTTT!!!

SpaceGodzilla roars out in fury and he opens his jaws, unleashing a powerful corona beam right at him.

THOOM!!!

The beam strikes right into Arch Belial, creating a massive explosion.

However, as the smoke clears, Arch Belial simply stood back, his skin barely grazed by the attack.

Arch Belial: Hm hm hm hm! How cute. That didn't even tickle.

Angered, SpaceGodzilla launches himself forward, roaring out in fury.

WHOOSH!!!

SpaceGodzilla: SKRRRREEEERRNNNTTT!!!

Just as SpaceGodzilla closes in, the Spatial Godzilla clone unleashes a powerful torrent of corona beam right at Arch Belial.

WHOOSH!!!

However, Arch Belial simply flies right through the attack and he swung his claws across, striking SpaceGodzilla right in his crystals.

CLANK!!!

Upon impact, SpaceGodzilla's shoulder crystals shatters into several shards, causing the Spatial Godzilla clone to roar out in agony.

SpaceGodzilla: SKRREEEEEERRRRNNNTTTT!!!!

Arch Belial: Look at Me!

Grip!

Arch Belial wraps his hand around SpaceGodzilla's neck, holding up the weakened Kaiju and he said to him scornfully.

Arch Belial: Don't you get it yet? You can never beat me. Soon, your energy shall be mine and this Universe shall be under my rule. And you.....

SpaceGodzilla: Ngh!

Arch Belial: THIS, Is what True Darkness is!!!!!

Arch Belial clenches his fist and he throws one powerful punch, striking SpaceGodzilla right in the face.

WHAM!!!

SpaceGodzilla: SKRRREEEEERRRRNTTTTT!!!!

As SpaceGodzilla is sent flying back, Arch Belial places his hands in a T position, unleashing a powerful Deathcium Ray right at SpaceGodzilla/

Arch Belial: DIE!!!!

VEEEEEEE!!!!

THOOM!!!!

SpaceGodzilla: SKRREEEEEERRRNNNNTTTT!!!!

SpaceGodzilla roars out in agony as the blast struck right into him.

The Spatial Godzilla clone's body began twisting and contorting before letting out into a massive explosion.

KABOOM!!!!

Arch Belial watches the flames burn across the void, watching as the fiery ambers flies deep into space.

WHOOOMMM!!!

A bright light shines across Arch Belial's body and within seconds, Arch Belial reverts back into Ultraman Belial.

The evil Ultra folds his arms and he scoffs out.

Belial: Humph! You're not even worthy of being my opponent.

Belial turns around and he launches himself up into the air, flying across the dark empty void, leaving a huge pile of crystal shards floating in space.

KO!

The winner is

 Ultraman Belial

Advantages and disadvantages

Spacegodzilla

Larger

Physically stronger

Slower

More obvious weaknesses

Not as experienced in combat

Has never faced as many opponents as Ultraman Belial has

Not as skilled in martial arts

Ultraman Belial

Faster

Tougher

More experienced

Better martial arts skills

Smarter

No weak spots on his body

Smaller

Physically weaker

Victory quote:

Ultraman Belial: The Universe shall be mine for now.

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