Legendary
Sigma Boy 🐧🍣😎
Bird
@aironicfun(originally made by Betsy and Maria Lankovskaia, but @aironicfun created the sushi character.)
|debut=March 25th 2025}}
Sigma Boy is an English Brainrot character created by @aironicfun on TikTok. He is depicted as a penguin with a sushi torso with a fierce attitude and sashimi hair. He appears in the Steal a Brainrot Roblox game as a Legendary brainrot, making him mainstream.
Origin Story
Created by Russian TikTok user @aironicfun, later integrated into Italian Brainrot. Inspired by Russian song 'Sigma Boy' by Betsy and Maria Yankovskaya. 46.5M TikTok posts.
Battle Info
Strength Level
Unknown
