"Tell you what," Overhaul said. "If you just step aside and let us leave, I might be able to persuade all of these convicts to spare you on their way off this island."

"Not a chance," Midoriya replied. "You must be insane if you think I'll just stand by and let all of these villains attack Japan. The only way you'll get past us is to kill all of us."

Deadpool simply groaned in response and held his forehead in his hand. "Typical."

All For One chuckled. "Very poor choice of words, child." He raised a hand in the air before pointing at the group of heroes, signaling his new army to attack. The army of villains gave a battle cry and ran forward.

Midoriya quickly looked to his friends before looking back at the horde of villains.

"PLUS ULTRA!!!" he shouted as he rushed forward with his allies.

What happened next was all-out chaos. Naturally, all of the heroes from other universes immediately went for their respective enemies. Midoriya and Uraraka found themselves engaged in combat with Overhaul while All For One stood back to watch the chaos unfold. Iida and Todoroki were fighting Stain (who had somehow gotten his hands on dual katanas), Kirishima and Sato were fighting Muscular, and the rest were trying to subdue the other villains.

"Well, fancy seeing you two again," Stain said to his two opponents, chuckling as he slashed at them.

"Shut up, you sick freak!" Iida shouted as he launched an engine-powered kick at the Hero Killer, which the latter easily dodged.

The noseless serial killer then attempted to run forward, only to find his legs trapped in a block of ice. He glared at Todoroki, who smirked in response.

Kirishima and Sato weren't faring much better against Muscular. Every punch just bounced off the serial killer's reinforced muscle mass as he cackled maniacally.

"I've never fought you two before, but as long as you're weaker than that green-haired punk, I shouldn't have any problem," Muscular said while grinning.

"I swear, this guy's muscles are like kevlar!" Kirishima exclaimed as he delivered haymaker after haymaker to Muscular's massive arm, only to be swatted away.

Meanwhile, Yaoyorozu and Jirou were locked in combat with Mustard, trying to penetrate his pseudo-barrier of poison gas while dodging the bullets shot at them, while Ojiro and Bakugou were trying to dodge Moonfish's razor-sharp, prehensile teeth, and Asui and Mineta were engaged in doing the same activity with the metal pillars Wolfram was raising from the ground. Tokoyami and Kaminari were preoccupied with fighting off multiple animal-like villains, and Aizawa was busy trying to protect a defenseless Yagi.

"I swear, it's like you kids sacrificed your sense of self-preservation in exchange for your Quirks!" Overhaul exclaimed as he swiped at Midoriya and Uraraka with arm blades.

"When we got accepted into U.A., we all swore an oath, to protect the innocent, no matter what!" Midoriya responded as he kicked Overhaul in the stomach.

As Superman and Zod clashed in mid-air, the latter couldn't resist the urge to start monologuing. "Think about what's best for Krypton, Kal-El!"

"Krypton blew up 25 years ago, Zod! Get over it!" Superman replied as he blasted Zod with heat vision.

"Traitor to your own cause!" was Zod's livid response.

Meanwhile, Iron Man and Titanium Man were flying even higher above the battlefield, blasting repulsor beams at each other.

"Your morals make you weak, Midoriya," Titanium Man said.

"At least I have morals, which is more than I can say for you," Iron Man retorted as he fired a wrist missile at his opponent, who tanked the hit.

Back on the battlefield, Spider-Man was dodging Doc Ock's tentacles, occasionally webbing them up.

"You should've joined me when you had the chance, Midoriya!" Doc Ock shouted, grinning maniacally.

"You're insane, Hatsume! You need help!" Spider-Man exclaimed in response.

"As you can see, I've got all the help I need!" she exclaimed in glee, gesturing to her tentacles and her villainous compatriots battling around her.

Nearby, Batman was dodging Bane's punches, while trying to land some hits of his own.

"You should've listened to me, Mr. Midoriya," Bane said, his voice muffled by his mask. "I offered you a chance to stay alive. You just had to stay out of my way."

"No good ever came out of inaction, Bane," Batman retorted.

"Speaking from experience?" his opponent mocked.

Lastly, Deadpool and Ajax were slashing at each other near the prison complex.

"Y'know, Shimura, I feel like we can talk this out," Deadpool said, only for Ajax to slash his stomach open with a battleax.

"Do you ever shut up?!" Ajax asked, growing angrier by the second.

"Well, I've got an off-button, but I don't think you swing that way."

As All For One was watching the absolute carnage in front of him, he grinned under his helmet. "This is gonna be fun."