Amakusa Miro is a Japanese VTuber with a very specific and very unusual specialty: she plays video games exclusively using her feet. No hands involved. She uses a Nintendo Switch Pro Controller placed on the floor, Splatoon, Mario Kart, whatever is on her schedule, and operates every button, stick, and trigger entirely with her toes and the soles of her feet.
That alone would be enough to make her stand out in a sea of content creators. But Miro recently took things a step further when she revealed to her followers on X that five years of this routine had physically changed her body in a way nobody expected, she grew a muscle that most people simply don’t have.
The post went viral almost immediately, and honestly, it’s hard to blame the internet for losing it over this one.
Five years of foot gaming have a price, and a reward
Miro posted on X on March 19, sharing that after five years of playing games with her feet, she had developed what looks like a “second ankle” on the outer portion of her left foot. She noticed the growth while rewatching one of her own livestreams, which led her to take a closer look at what was happening to her foot and eventually connect the dots.
The explanation comes down to how she actually holds her feet while playing. Miro keeps her left foot raised, flexed upward , during gaming sessions, because that foot is responsible for general movement and navigation using the left analog stick and the directional buttons.
【悲報】“足だけ”でゲームをやり続けて進化
足操作Vtuber「天草ミロ」さん
5年間「足操作」をメインに高難度ゲームを攻略し続けた影響で、
日常生活では発達しない”くるぶし”付近の筋肉が異常発達
※筋肉は「天草筋」と命名 pic.twitter.com/JK2mBecGmc— 藍染ガレソの悲報（兼業投資家 (@aigare01) March 22, 2026
Do that for thousands of hours over the course of five years, and the body starts adapting. In her case, it adapted by building a notably large, well-developed muscle in that area, something that doesn’t exist in most people’s anatomy, or at least not developed to that degree.
To be clear, it isn’t a new bone or a structural deformity. It’s pure muscle, built up over years of repetitive strain in an unusual position. What makes it remarkable is the sheer size of it, visible enough that Miro herself was caught off guard when she spotted it on her stream footage. The human body is wired to reinforce muscles under consistent stress, but growing something this pronounced from playing video games is genuinely uncommon territory.
Miro, never one to take herself too seriously, announced in her post that she had officially named her new growth the “Amakusa muscle,” and added that any companies interested in placing their logos on her feet were welcome to reach out. She also noted that while her right foot hasn’t shown any similar changes, the left one has clearly been putting in the work.
The skills behind the gimmick
It would be easy to dismiss Miro’s foot-gaming setup as a novelty act, but her track record says otherwise. She started her foot-controller challenge on August 14, 2021, setting herself the goal of reaching Rank X in Splatoon 2, the highest competitive rank in the game, using only her feet, and doing it before Splatoon 3 launched. She completed the challenge in roughly one year, hitting Rank X just in time.
To put that in perspective: Rank X in Splatoon 2 sits at the very top of the competitive ladder, beyond S+9, and is a tier where most players using both hands and standard controls struggle to climb. Miro got there with a Pro Controller on the floor operated entirely by her feet, using custom button mapping she had developed and refined through months of practice.
When she returned to Twitch to stream the final push toward Rank X, viewers watching the broadcast could see her, the Splatoon 2 gameplay screen, and a camera feed pointed at her feet working the controller, an unusual setup that replaced the standard hand-cam most competitive streamers use.
According to those who watched, her movements were smooth enough that without the foot footage, you’d have no idea she wasn’t playing normally.
She also prepared extensively before going into ranked play. Before ever touching competitive matches with her feet, she ran through Splatoon 2’s entire single-player Hero Mode using only foot controls to build familiarity with the setup. Early footage from when she started shows a clear learning curve, but the progress over time is undeniable.
When fans wonder how much her performance would improve if she switched to using her hands, Miro has a pretty specific answer: she estimates she would earn roughly 450 more experience points per ranked Splatoon match playing normally. It’s an honest acknowledgment that hands are more efficient, but the margin being that defined also says a lot about how refined her foot technique actually is.
A story about what the body can do
There’s a bigger picture here beyond the viral post and the impressive gaming achievements. When Miro first started the foot-controller challenge, her stated goal was to prove that reaching Rank X was more about game sense, situational awareness, positioning, reading the map, than raw mechanical input. She proved it, against opponents playing with their hands under standard conditions.
After completing the challenge, she posted on X reflecting on the response from her community. She wrote that seeing people inspired by her gameplay to believe they could also reach Rank X made her genuinely happy, and pushed back against the idea that certain achievements are only possible for specific people.
Her message was that hard work makes almost anything possible, and that streamers have a responsibility to keep that kind of hope alive for their audiences.
That message carries a little more weight now that the same dedication has literally reshaped her anatomy. Most people who grind at something for five years walk away with experience and maybe some calluses. Amakusa Miro walked away with a brand new muscle, a viral moment, and an open invitation for sponsorships on her left foot.
There have always been doubters when it comes to her skills, but Miro’s approach has consistently been the same: get better, keep playing, let the results speak. The “Amakusa muscle” is just the latest piece of evidence that she’s been doing exactly that.
What do you think, would you ever try playing your favorite game with your feet? Tell us in the comments, we want to know!