Anime continues to entertain and surprise audiences through its heightened storytelling where it feels like anything is possible. There are plenty of grounded anime, but some of the most successful series are grandiose shonen shows that feature bold battles between good and evil. There is endless debate on whether Dragon Ball's Goku can defeat One-Punch Man's Saitama or which mobile suit mecha from Gundam is the most powerful. These heightened heroes have remarkable accomplishments, yet they all fall short of a certain anime main character who usually doesn't even enter the conversation: Kirby.
Source:https://www.cbr.com/kirby-strongest-anime-op-characters/