Garou and Metal Bat vs. Sage Centipede and Evil Ocean Water


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Garou and Metal Bat vs. Sage Centipede and Evil Ocean Water is the fight between Garou and Metal Bat (with support from One Shotter and Gearsper) and the recently emerged Sage Centipede and Evil Ocean Water.

Prelude
After the Sage Centipede rises to the surface, Garou jumps on it and attacks it strongly in the face, but is counterattacked by the kaijin with his Centipede Long March when he is distracted by the escape helicopter that flies over the area as well as being where is Tareo, being violently rammed against the ground. Sage Centipede taunts the Hero Hunter as in that instant, Saitama dashes towards his partner Evil Ocean Water and scatters him completely. Shocked at what happened, the kaijin remains stunned as Garou approaches him for revenge.

Battle
Before he can even do anything, Garou notices how a figure in the sky, which is Metal Bat, jumps on the monster and unleashes his Dragon Strike, which has no effect and causes the Centipede to knock the hero to the ground. . In a rare situation, the two look alike and the hero angrily asks the Human Monster if he's going to get in his way again, recording what happened during the Elder Centipede incident. Metal Bat swings at Garou, who evades it saying that this is not the time for that.

Garou continues on his way to the Sage Centipede, with the hero in pursuit. Just as the kaijin is about to shoot down a news chopper that was found filming the battle, Garou jumps on its head towards the vehicle as Metal Bat shields them from the monster's antennae. Garou manages to force the civilians to flee, then extremely quickly kicks the Sage Centipede's body. The Human Monster and the S-Class fall to the ground, where they have an argument as they agree to cooperate in thwarting the Kaijin's planes from shooting down the getaway chopper. Sage Centipede takes advantage of the fight between the duo and tries to attack them, but is forced back by them with some heavy blows.

Garou and Metal Bat then unleash their respective techniques on the creature, Whirlwind Water Stream: Roaring Aura Sky Ripping Fist and Wild Tornado. His attacks are strong enough to break through Sage Centipede's armor, but fail to deal significant damage due to his tremendous regeneration. The two try to come up with a plan to prevent the monster from regenerating when it lunges back towards the rescue helicopter, where One Shooter tries to shoot him but fails due to the loss of his special mechanical right eye. Sage Centipede eventually catches the helicopter with its antennas, shattering the rotor and taking the people inside hostages. At this moment, Garou and Metal Bat both stop dead in their tracks. Immediately after, Sage Centipede attacks the two with its Centipede Grand March, causing the entire terrain to change and seemingly taking them down. Due to the damage sustained, Garou is on his knees and subsequently grabbed by one of the monster's human arms. Just as he is about to be killed by Sage Centipede, One Shotter, now able to aim accurately thanks to having support from Gearsper, shoots the monster multiple times at its eyes, momentarily distracting it and allowing Garou to pry open the hold and escape. Right after, Garou proceeds to pummel Sage Centipede. As Garou attempts to free the helicopter from the monster's antennas and is about to be attacked, Metal Bat, with his serious injuries, appears and chops off Sage Centipede's antennas, much to its surprise.

Having received massive injuries, Metal Bat, through his Fighting Spirit, was "pumped up" and his strength has increased higher than ever before. He then informs Garou, who is holding the helicopter, of a huge net 500 meters away, which the Hero Hunter proceeds to throw it to said safety position, much to Sage Centipede's displease. The two of them then stand side-by-side and ready to give the monster all they have got. Sage Centipede refers to their team up as pathetic shortly before charging at them with its 6666 Leg Grand Drill, a powerful attack that resembles a drill. In response, Garou and Metal Bat, working in-tandem, utilize their strong techniques respectively, Cross Fang Dragon Slayer Fist and Savage Hurricane, accidentally creating a combo attack against the giant monster, successfully countering its rush and even cracking its durable shell, much to its shock. It is then revealed that Metal Bat is inferior to Garou in strength by a large margin and the reason the S-Class hero could keep up with the Hero Hunter is because of their "resonance", which has amplified Metal Bat's capabilities to amazing levels.

Metal Bat and Garou continue their assault, with the former now being strong enough to damage Sage Centipede's exoskeleton with every single swing due to him "resonating" with Garou, although he is quickly knocked back by the monster. Garou, having his strength also increased greatly due to him "resonating" with Metal Bat, is now able to blast through Sage Centipede's body and steal its "regeneration core", ceasing the monster's ability to regenerate. While Sage Centipede is shocked at the fact that it can no longer regenerate from damage, Garou explains that he noticed a certain spot on the monster that was releasing energy and therefore figured out about the core. Sage Centipede attempts to take back its core but the Hero Hunter throws the regeneration core up into the sky at high-speed. He and the centipede monster then try to catch up to the core. Metal Bat, unable to continue fighting, lies on ground and mutters that Garou has to defeat Sage Centipede, before seemingly becoming unconscious as a result of his heavy injuries.

Sage Centipede is trying to catch its regeneration core, which was thrown out of the planet by Garou. The monster is finally able to reach and hold the core with its antennas, having revealed its immense length as it has extended all the way from ground to space. Garou, having run across its back, leaps up at the regeneration core and completely destroys the core by jumping down. Heading towards Sage Centipede with a karate chop, the giant centipede finally meets its end as the Hero Hunter chops it in half vertically all the way down to the surface.

Aftermath
Garou declares that "his fist" has now been perfected.

Trivia

 * Previously, Garou interrupted Metal Bat's fight with Elder Centipede which allowed the monster to escape as the two started their own duel. The inverse occurred at the start of this fight, with Metal Bat interrupting Garou's attack on Sage Centipede. However, instead of dueling one another a second time, the two reluctantly cooperated to fight Sage Centipede.
 * This is the first and only fight where Garou directly teams up with another character to face a common enemy.