Fights in One Punch Man are usually one-sided, especially when Saitama is involved. However, there have been moments where heroes, villains, or even unlikely allies had to join forces to overcome powerful threats. These team-ups often bring a mix of strategy, raw power, and unexpected cooperation, making battles more exciting.
Whether it’s two S-Class heroes working together or a group effort against an overwhelming enemy, these moments stand out as some of the most intense in the series. Some team-ups are based on mutual respect, while others happen out of necessity, forcing characters to put aside their differences for survival.

These alliances often push characters beyond their usual limits, showing what they can achieve when working together. Looking at some of the best team-ups, it becomes clear that teamwork, even in a world of overwhelmingly strong individuals, can make a difference.
Saitama and Genos – Master and Disciple Duo
Saitama and Genos have fought together multiple times, though most of the time, it is Genos doing all the work while Saitama watches. Despite the power gap between them, Genos always rushes into battle with full confidence, hoping to learn from his master.
One of their most entertaining team-ups happened during the fight against G4, a powerful robotic enemy sent by the Organization. Genos took on the machine with his full arsenal of attacks, showing his impressive speed and firepower.
However, Saitama casually finished off the remaining pieces with a single punch, proving once again how effortless fighting is for him. Another moment that stands out is their battle against the underground monsters when they enter the Monster Association’s hideout.
Genos went all out, tearing through enemies, while Saitama, as usual, barely noticed the threats. Their teamwork is not based on balance, as Saitama does not need help, but it is always entertaining to see Genos try his hardest while Saitama remains unaffected.
Bang and Bomb – Brothers in Action
The two martial arts masters, Bang (Silver Fang) and Bomb joined forces to take on the monstrous version of Garou. As brothers who have perfected their fighting techniques over decades, their synchronization in battle was impressive.
When Garou reached a stage where he was too dangerous for a single fighter to handle, Bang and Bomb worked together, combining their martial arts styles to overwhelm him. Their teamwork relied on experience and precise coordination, with each attack flowing seamlessly into the next.
While Garou was strong enough to resist them, it was clear that without their combined effort, the fight would have been much shorter. This battle was one of the few times martial arts alone were used to stand against an opponent with monstrous strength, making it a unique moment in the series.
Tatsumaki and Genos – The Unlikely Pair
Tatsumaki, the strongest esper, rarely works with others because of her overwhelming power and stubborn personality. However, when the battle against the Monster Association escalated, she found herself teaming up with Genos. Given how different their fighting styles are, this alliance was both surprising and effective.
Tatsumaki’s psychic abilities allowed her to lift and throw massive structures, clear out enemies from a distance, and create defensive barriers. Genos, on the other hand, used his speed and firepower to provide close-range support.
Despite their differences, they managed to work together long enough to deal with multiple Dragon-level threats. Their combination of raw destruction and precision attacks made them a terrifying duo, even though Tatsumaki refused to acknowledge Genos as an equal partner.
Flashy Flash, Saitama, and Monster Garou – The Speed Trio
During the final battle against God-level threats, one of the most unexpected team-ups occurred between Flashy Flash, Saitama, and Garou in his monstrous state. Flashy Flash, known for his incredible speed, was the first to engage in battle, using his assassination techniques to overwhelm opponents.
However, Saitama casually matched his speed, shocking him beyond belief. The real highlight came when Garou, after evolving further, joined the fight. With all three characters moving at speeds beyond human comprehension, the battle turned into a high-speed spectacle.
While Flashy Flash was skilled, it became obvious that Saitama and Garou were operating on an entirely different level. This temporary alliance showed that even among the strongest, there are different leagues of power.
The S-Class Heroes vs. The Monster Association
One of the biggest team-ups in the series happened when the S-Class heroes launched a full-scale attack on the Monster Association. With multiple Dragon-level threats inside, cooperation was the only way for the heroes to succeed.
This battle showcased different heroes fighting side by side, each contributing their unique skills to the mission. Tatsumaki took on the role of battlefield control, using her psychic powers to crush enemies and create openings for others. Genos provided firepower, taking out hordes of monsters with his energy blasts.
Atomic Samurai and his disciples handled close-combat threats, while other heroes, such as Child Emperor, used strategy and gadgets to weaken opponents. Despite their differences in personality and fighting styles, they managed to work as a unit against enemies that would have been impossible to defeat alone.
The teamwork on display during this battle was one of the most intense moments in the series, proving that even in a story filled with overwhelmingly strong individuals, teamwork still has value.
Garou and Saitama – The Final Battle
One of the most shocking team-ups happened during Saitama’s fight with Garou after he had reached his strongest form. At first, the battle was completely one-sided, with Garou trying everything to harm Saitama while failing at every turn.

However, after gaining an understanding of cosmic abilities, Garou temporarily reached a level where he could copy Saitama’s strength. For a brief moment, they were fighting on equal ground, exchanging blows that shattered entire planets.
Though this was not a traditional team-up, Garou’s ability to mirror Saitama’s power created a unique battle dynamic. It was one of the few moments in the series where Saitama had an opponent who could match his punches, even if only for a short time.
Why Team-Ups Matter in One Punch Man
While most battles in One Punch Man end with a single punch from Saitama, the team-ups between other characters add variety to the story. They allow different heroes to shine, showcasing abilities and strategies that would otherwise be overshadowed by Saitama’s dominance.
Whether it’s experienced warriors like Bang and Bomb using their martial arts together or powerful figures like Tatsumaki and Genos combining strength, these moments add depth to the action.
Even though Saitama rarely needs help, watching other characters work together in battles against powerful enemies creates some of the most engaging fights in the series. These team-ups prove that strength alone is not always the deciding factor in battle—sometimes, cooperation and strategy make all the difference.