One Punch Man is undoubtedly one of the most popular anime of all time. Saitama- the hero for fun has crafted a special place in our hearts. However, I think without the anti-heroes, villains, and monsters, we would never be able to see Saitama in full power.

And like other anti-heroes in OPM, Speed O Sound Sonic was also an important character.

In this article, I will try to inform you about Speed O Sound Sonic Monster and all the interesting facts about him.

Is Speed O Sound Sonic A Monster?

The anti-hero Sonic was named this way because his ability was the highest speed that could be compared to the speed of sound. I am addressing him as an anti-hero because he was never converted into a monster.

In the OPM world, the Monster Association provided normal people with the Monster Cell. This monster cell could transform any human being into a vicious monster. But there were certain rules for the cell to activate.

These rules stated that the monster cell should be eaten raw and the person needs to have strong willpower to be a monster. I don’t know if I should say fortunately or unfortunately, in the case of Sonic, he cooked the monster cell into cooking wine and then ate it.

Since he didn’t follow the rules of eating raw monster cells, his body suffered from diarrhea and weight loss. Instead of transforming into a monster, he stayed the same old Sonic with a limitless urge to defeat Saitama. The cooking nullified the effect of the monster cell and Sonic stayed as a human.

Can Speed O Sound Sonic Defeat Saitama?

Well, there are multiple theories from the manga that if Sonic hadn’t cooked the monster cells, he could have reached the peak of his abilities- speed and strength. He was also a trained martial art warrior with a weapon. So, it is not hard to assume that he could be really dangerous.

However, we have already seen that Sonic was defeated by Saitama multiple times. But even after being defeated, he continued attacking Saitama. Sonic’s power level is the same as Genos and the most amazing thing is he is still training himself so that one day he can be stronger than Saitama.

Now, Saitama only sees him as an annoying creature, and every time they fight, it becomes funny rather than a serious fight. So, in my opinion, I don’t think Speed O Sound Sonic can ever defeat Saitama.


Sonic wanted to defeat Saitama because he used to have nightmares about him. That’s why, with superhuman speed, agility, training in Ninja equipment, and afterimage creation ability Speed O Sound Sonic tried to defeat Saitama. 

The willpower of this character made it special even though it was one of the weakest characters in the series.

I hope you enjoyed watching Sonic’s battle throughout the series. And I know you are all wondering whether Sonic ever gets a chance to defeat Saitama. To know that, keep waiting patiently for the next season or you can always read the manga.

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