Spoilers from included and/or represented works abound. Please read this fiction carefully.
"Strange Supreme, the Sorcerer Supreme!" Strange Supreme introduced himself.
"I kind of know you." Mercurius recognized Supreme. "You're an alternate Doctor Strange."
"Exactly." Supreme confirmed.
"What do you expect from the omniverse itself?" Infinity Ultron asked.
"Ask Empress Zero!" Mickey Mouse replied.
"Mickey, calm down!" Sora told Mickey.
Infinity Ultron then crashes the rift, creating a massive gaping hole in the sky, thundering the ruins. He, Ultron-Sigma D and various other emerged from it.
"No way... Ultron-Sigma!?" The reploids, Tron, Dante, the World Fighters, and various other Capcom characters are shocked.
"No way... It's Ultron-Sigma!" Steves recognized Ultron-Sigma.
"You killed and absorbed the other me!?" Dante asked Ultron-Sigma D.
"Exactly." Infinity Ultron confirmed. "This version managed to absorb the power of the son of Sparda, and imbued it so he could use the Soul Stone."
"Yes! We did it!" Ultron-Sigma D confirmed. "How dare you throw me out of the way!?" *referring to David and his group back then*
"You remember us? Very well." Smasher responded.
"Fight us or fight each other, it makes no difference." Dark Kahn said. "You. Will. All... Fight!"
"Who are you?" Zanza asked the enemies.
"We're Ultron-Sigma D!" Ultron-Sigma D then laughed evilly.
"And friends." Infinty Ultron continued.
"Very nostalgic." Zanza commented. "I longed for friendship, though Shulk proved-"
"You have a handful of gods right here!" Dark Kahn interrupted Zanza.
"Bruh..." David facepalmed.
"Here's the empowered crown, powered by everyone's New Era." Infinity Ultron snatched Kronika's crown. "Take it, Kahn."
Dark Kahn wears the crown, and it turns out that the crown is now powered by every single versions of the New Era. Upon wearing it, Dark Kahn feels a massive surge of power.
"I see." Dark Kahn accepts all the power, as fire, lightning, sand and soul sorcery engulfed him. "Forever!"
"And you, Archon." Infinty Ultron looked at the Evil Omni-King Archon. "You look lit here."
"Thanks." Archon thanked Infinity Ultron in return.
"As for you, Nekron?" Infinty Ultron looked at Nekron.
"Ultraman Tregear from the World of Ultras. Rise." Nekron went ahead. to
"Nekron!?" Shinra and Ouma are shocked.
"We barely knew that death guy..." Sheath admitted that Shinra agents doesn't know much of Nekron yet.
"All hail Empress Zero!" Infinity Ultron rejoiced.
"You are serving the same Zero who destroyed Zero Point!?" Miko argued with Infinty Ultron.
"Exactly." Ultron-Sigma D confirmed. "We're among the low-ranking soldiers of her, actually."
"Oh no..." Nia the Blade is on verge of despair. "They're beyond multiversally strong now, and yet... they're just mere minions!?"
"There's no other way!" Sora told everyone. "We gotta fight!"
"Die!" Nekron shouted.
Both parties then charged ahead and ran to reach other, straight into combat. Mercurius went on to buff the group against the destructive enemies. Because of their powers, the group mainly coordinated with each other and targeted each enemy depending on the task and the situation.
"For the Omniverse!!!" Party Thor, one of the Guardians of the Multiverse, fired lightning to the enemies and then some, using his Mjonir... which results in the same thing as Thudaga, allowing David to fire the lightning bolt. He shot it at Nekron.
"Behold! The cross-technique!" Kogoro went multi-attack alongside Shinra and Ouma agents, Haken and Kaguya. This put down Ultron-Sigma D and Infinty Ultron, allowing other to bombard them.
And so on...
"Die for the sake of our world and others!" Zi-O then do the finisher (Time Break).
"For Kamen Riders!" Geiz did the finisher (Time Burst) as well.
Both Zi-O and Geiz took the finishers in form of Double Rider Kick, stunning Archon with it.
"Time's up!" Woz went with the finisher (Time Explosion) in form of crashing Archon with the Zikan Despear. Archon exploded.
Captain America and Carter threw their shields together to lock and strike Infinity Ultron continuously.
"You're doing the same truck again?" Infinity Ultron then teleported. The shields ended up hitting both Captains, knocking them out.
"Cap!" David activated Sandevistan and catched both shields, then threw both onto Ultron-Sigma D. Infinity Ultron then teleports and catched both for D.
"No excuses!" Infinity Ultron then threw both shields onto Noah and Mio in Noah's Ouroboros. That Ouroboros managed to catch Carter's shield, but is split by America's. The Ouroboros then fell down.
"What're you doing, monster!?" Mio assumes control of the Ouroboros, turning it into her version thereof, before approaching Infinity Ultron. Infinity Ultron teleported into the sky.
And so on, so on, so on...
"I'm pretty impressed. You-" Archon commented.
"Shinra Bansho! Kai!" Reiji, Saya and Xiaomu Multi-Attacked, doing the skill to knock Archon down.
Then it ends up having both Zanza and Gamora slashing Archon down, damaging him and preventing him from siphoning any more power.
"Guys! We're being bombarded by those lowlifes!" Ultron-Sigma D reported.
"Manji Mandara... Muryou Taisuu!" Hajun about to strike Archon. However...
Archon handily blocks the strike.
"How!?" The group, even Hajun, is shocked.
"How dare you...!" Hajun is angry again.
Archon simply threw Hajun down. Infinity Ultron gathered the enemies together. The clearly injured heroes (and villains) alike stood up and looked at the threats.
"Not bad for five monsters." David commented, having been tired from the load his cybernetics handled.
"Pretty good for nearly a thousand peasants." Archon commented.
"Very well. We must admit that you're strong." Ultron-Sigma D admitted, and collapsed his faceplate, revealing DMC Dante face similar to that Devil Trigger.
"That... the other me!" Dante pointed it out.
collapses faceplate* "Precisely, a son of Sparda." Infinity Ultron confirmed. "As for me... I am Vision."
"I knew it." The alternative Natasha Romanoff recognized Infinity Ultron. "You're the one who tried to destroy us before!"
"Thanks to Empress Zero, I was rebooted and escaped that bubble of reality." Infinity Ultron explained how he returned.
"You...!" Supreme is enraged, summoning Shuma Gorath.
Infinity Ultron simply used his laser vision to kill it, much to everyone's shock.
"You'll need at least two full sets of Infinty Stones to harness the powers across the multiverse." Infinity Ultron explained. "And you needs at least three full sets of Infinity Stones to control everything in the Multiverse."
"Each set of Infinity Stones is unique. Every universe is different." Reiji found out. "Ah, we see."
"So I've got two completed Infinity Gauntlets in both hands." Infinity Ultron then showed off both: one powerful Dwarven-made Uru glove designed to channel the power of Infinity Stones; the other is the Nano Gauntlet also designed to channel the power of Infinity Stones; both completed.
"Nice." Ultron-Sigma D complimented.
"Now that I have three full sets of Infinity Stones... I'll destroy you." Infinity Ultron then started harnessing the powers. "You'll all fall, and be erased from existence."
"Stop!" The triplets appeared. But Infinity Ultron just started.
As a result, Infinity Ultron shines with Infinity, and started devastating the whole area with a continuous surge of white energy to overwhelm the heroes (and villains). Strange Supreme managed to crate the shields and armors based on the protective spells, and Mercurius supercharged the spell, reinforcing everything the heroes (and villains) have.
"Hold on! Don't... let go!" Lucy warned the group.
"Everyone, hold my powers!" Infinity Ultron offered to hold hands.
All agreed, so Ultron-Sigma D and Dark Kahn held the hands with. Nekron and Archon followed suit, side-by-side. This instantly amplified and emanated Infinity Ultron, leading to the powers of five threats being projected destructively.
"Grand out!" Zi-O went to transform into Grand Zi-O. Geiz and Woz followed suit into GeizMajesty and WozGingaFinaly, respectively.
"Why won't you die!?" The threats then all powered up, further going on destructively trying to overpowered our heroes and villains.
"We can't... die here!!!" SMG0 shouted.
"Miss... We made it!" Vivi called everyone.
"Vivi... and your other two..." York recognizes the triplets.
"Not you again, Shin-Baku!" Infinity Ultron then had to power-up further.
"No!!!" Eruma, though Supreme and Mercurius brought the protection to the triplets.
"Die!!!" Nekron shouted and all powered up again, further overpowering everyone.
"Do something, Vivi!" Meggy shouted.
"Ok." Vivi agreed, then gathered Iruma and Eruma together. They then quickly casted bright magic, trying to blind the threats.
"What are you doing!?" Ultron-Sigma D asked the triplets in rage.
"For the omniverse!" The triplets shouted as they cast the magic.
The faceplates on Infinity Ultron and Ultron-Sigma D both re-secured in place, and all five threats powered up themselves even further.
"Oh my Strange..." Stephen Strange of Earth-616 then assisted Strange Supreme, boosting and reinforcing the armors and spells.
Farther away, a Sideways Rift appeared, and emerging from the rift there are: Gunleon (Rand Travis), Virgora Glory (Setsuko Ohara), Shurouga (Asakim Dowin), Van Ein (Asahi and Honoka Inui, and Schatte Judevesten), Huckebein 30th (Edge and Az Sainklaus), Grungust with Zankantou (Zanger Sanvolt), Aussenseiter (Elzam von Branstein), Gun-Ark (Tak Kepford), another Gun-Ark (Marina Carson), Ixblau (Barrel Orlando and Fei Roshnant), Alpheart (Autumn-Four), and a Nineball Seraph.
"Look!" Zanger spotted the light. "Someone's in danger!"
"It appears that there's various people being overpowered by some... certain threat." Autumn-Four reported.
"We have to approach them!" Setsuko suggested. "What else are we gonna do!?"
Ultraman Tregear appeared behind the threats and in front of our heroes and villains.
"Sincerely... for Empress Zero!" Tregear then charged his Ultra Beam: the Treracium Beam.
"Go, go, go!!!" The mechas charged towards Tregear and Infinity Ultron and friends.
"Guys! I have an idea!" Barrel got an idea. "More physical of us go uppercuts this giant, while the rest alpha-strike at those threats below!"
"Good, our boy!" Tak complimented Barrel. "Nice strategy considering we have to approach fast and that there are two critical attacks right there!"
So, with that being said, the Gunleon, the Virgora, Van Ein, Grungust, Aussenseiter and the Huckebein went ahead and aimed to uppercuts Tregear, while the rest of the mechas aimed at Infinity Ultron, Ultron-Sigma D, Dark Kahn, Archon and Nekron.
In the meantime, the protective spells and the armor en-formed with it is wearing off due to the threats slowly powering themselves up, while Tregear is about to fire the Treracium Beam.
"We can't hold it much longer!" Earth-616 Strange then coughed blood, even with his third eye opened for better magic.
"Will we survive this extreme destruction?" Supreme wondered, as both Strange starts to falter.
"Is this the end of us all..." Sheath started crying.
"Target locked!" Az has the Huckebein locking the targets.
"Good. Anyone?" Edge asked the pilots. "We're quite near the whole thing by now."
"Yes! Target locked!" The mechas also locked the respective targets as well.
Seconds later, Gunleon, the Virgora, Van Ein, Grungust, Aussenseiter and the Huckebein briefly dipped down to a couple of meters above the surface, then spontaneously and consistently rose up to make way and go for the strikes, having readied their melee weapons. The rest of the mechas loaded their arsenal and is about to fire at Infinity Ultron and friends.
The ones went with the uppercuts then swiftly went through Infinity Ultron and friends, and quickly went upwards to Tregear on the top.
"Everyone... strike!" The mechas targeting Infinity Ultron and friends then fired all things towards them, while the ones doing the uppercuts delivered the strikes jointly, knocking Tregear out, losing the charge for the Treracium Beam.
The projectile all hits all five threats, exploding then in the end. Interrupting the overpowering energies, Both versions of Strange finally let go, and everyone took a brief survival break.
"Finally!" Lucy is relieved.
The blasts seemed Infinity Ultron, Ultron-Sigma D, Dark Kahn, Archon and Nekron away very far. The uppercuts made Tregear fall down to behind. The result? Infinity Ultron and friends ended up being crushed by Tregear.
"Whoa! Look at that!" The Code Holders is amazed.
"Sorry for making you wait." Edge nervously apologized.
"Who are you? Those robots are..." David have no idea.
"It's complicated." Autumn-Four replied. "Let's do it later."
"You're some of our recent clients?" Xiaomu asked.
"Yeah." Zanger confirmed. "By the way, nice to see you again, Reiji, Xiaomu."
"You know that man?" Sora asked Reiji and Haken about Zanger.
"Listen, boy," Haken then proceeded to explain everything he currently knows about Zanger.
"And there are us who thinks it's all over here."
The Riders untransformed.
"You all must be strange..." Tsukuyomi suspected. "Except for Sougo, Geiz, Woz and the other Riders, of course."
"Yeah. But those multiversal minions could get up any time now." Sougo said.
"Zi-O. Everyone go to Dragonturtle." David suggested. "Except whoever is currently a robot pilot."
"Let's go before they go back." Masaki concurred.
Masaki went to Cybuster (which arrived at the ruins of Night City not long before). Him and the other pilots went to their respective mechas and flew away. The rest went into Dragonturtle MK. II and left as well.
"Everyone, this morning's expedition is over!" Chizuru announced.
"We've scanned who those threats are." Lucy and some other network-orientated characters there has managed to scan the enemies.
"You may have scanned some survivors in Night City, but unfortunately..." Xiaomu responded. "... nearly all those survivors are dead during this morning's fights."
"The dragons already laid waste to the City of Dreams." Smasher commented. "However, what we didn't just recently has pretty much destroyed everything about this very much."
"Let's go to our new hub." Reiji suggested.
"What about Shin Halberd?" Mercurius asked.
"Unfortunately, because of the burning damage on the right wing, it has to be fixed." Reiji replied. "I asked Felix the Fixer and some other builders to repair the damage."
"Well... Yeah." David concurred. "Let's us go to meet the Radical Six and others."
"Good luck, everyone!" Saya told everyone, as the Dragonturtle and the mechas goes inside the rift.
Tregear then stood up, recovering from the strikes inflicted. The rest of the threats flew away and stood in the sky.
"We will get you!" Ultron-Sigma D declared.