The anime One Punch Man has continued to fascinate audiences with its mix of powerful superheroes and formidable villains. Since the start of the Monster Association Arc, the series has gained tremendous popularity.
During her confrontation with the fusion of Psykos and Orochi, Tatsumaki, the second most powerful hero after Blast, demonstrated the true extent of her abilities. On the other hand, Boros, recognized as the strongest alien in existence, engaged in a fierce battle with Saitama and put up an impressive fight.

A showdown between these two characters raises an interesting question—who would emerge victorious? While Boros, in his base form, would struggle to overpower Tatsumaki due to her extraordinary telekinetic abilities,
his Meteor Burst transformation would make him far superior to her in combat. A deeper look into their peak abilities, based on the manga, provides clear reasoning as to why Boros would dominate without much difficulty.
Tatsumaki: The Tornado of Terror
Tatsumaki holds the rank of the second most powerful hero within the Hero Association, just below Blast. As an S-Class hero and an esper, she possesses a fierce temperament, often displaying arrogance and a rude demeanor, which can be observed in her interactions with Genos and Saitama.
I. Power and Abilities
Among the most formidable espers, Tatsumaki wields an array of psychic abilities, which are elaborated on below:
1. Psychokinesis
Her telekinetic capabilities far exceed those of Geryuganshoop, which speaks volumes about her strength. She effortlessly sent the demon-level Hundred-Eyed Octopus flying. During her fight against Psykos and Orochi, she reshaped large portions of Z-City while obliterating the monstrous enemy.
2. Flight
Beyond using telekinesis against her foes, she employs it on herself to lift off the ground, allowing her to move at high speeds through the air.
3. Psychic Barriers
The ability to generate barriers through psychic energy is another skill in her arsenal. She successfully created a barrier vast enough to cover extensive sections of Z-City and even layered it further to trap her targets within, making escape nearly impossible.
4. Telepathy
This ability functions primarily as a means of communication, particularly with her younger sister, who is also an esper. It enables them to exchange messages across long distances with ease.
II. Weaknesses
Despite her immense psychic prowess, Tatsumaki is not without her vulnerabilities. Her unwillingness to collaborate with others due to her arrogance creates obstacles when working in a team.
Additionally, her defensive capabilities diminish as she increases the intensity of her attacks. Any injury to her brain weakens her abilities and continued exertion under such conditions can lead to a loss of control, potentially endangering her allies.
Boros: The Strongest Alien
Boros stands out as one of the most powerful characters within the One Punch Man universe for several reasons. As the leader of the Dark Matter Thieves, he was responsible for the annihilation of A-City.
Fueled by his search for an opponent worthy of battle, Boros wandered across different planets, seeking the ultimate challenge. As the main antagonist of the Alien Conqueror Arc, he is widely regarded as one of the top three most powerful beings in One Punch Man, surpassing even God and Sage Centipede.
I. Power and Abilities
Possessing abilities far beyond ordinary limits and classified as a Dragon-Level threat, Boros boasts an exceptional range of skills, detailed below:
1. Super Strength, Speed, and Durability
Born with incredible strength, Boros ranked just below Saitama in terms of sheer physical power. His remarkable speed, coupled with razor-sharp reflexes, made him a formidable opponent in battle.
Even while restricted by his armor, he withstood Saitama’s normal punch, demonstrating extraordinary resilience despite not operating at full capacity.
2. Regeneration
Regeneration was another remarkable trait of Boros, which was common among his species. After enduring consecutive normal punches from Saitama, he rapidly regenerated his arms within moments.
His ability to heal surpassed all others of his kind, and his defeat at Saitama’s hands only occurred because he had depleted all his energy in the process.
3. Energy Projection and Body Armor
Boros possessed the capability to launch powerful energy-based attacks, integrating them into his physical strikes for maximum impact. His armor, which suppressed his immense power, was shattered during his encounter with Saitama, unlocking his full potential.

With years of combat experience, he mastered techniques such as Meteor Burst and Collapsing Star Roaring Cannon, which could have annihilated nearly any adversary—had that opponent not been Saitama.
II. Weaknesses
Despite his overwhelming strength, Boros struggled with control over his immense energy, which necessitated the use of armor to restrain it. This inability to regulate his power became evident when he exhausted himself rapidly after releasing his full capabilities.
His extraordinary abilities became his downfall, as maintaining them for prolonged periods put his life in jeopardy.
Tatsumaki vs. Boros: Who Would Win?
Even considering Boros’ stamina issues and other limitations, he would still emerge victorious against Tatsumaki, as she falls far short of Saitama’s power level. Although she is an exceptionally strong esper, Boros’ devastating attacks would completely overwhelm her.
Additionally, her psychic abilities would be ineffective against Boros due to his regenerative properties. He would recover from it almost instantly no matter how much damage she inflicts.
Once Boros enters his Meteor Burst state, Tatsumaki struggles to hold her ground against him, leaving Boros as the clear winner of this battle.