Super Smash Bros. Lore!
This is not official, it's some weird stuff made up by me and my friends
Mii Fighter
Mii Fighter used to be an average man from Detroit named John. He worked hard all his life, getting good grades in school, impressing people, and excelling at the hardest subjects. However, after years John became numb, no longer feeling emotion, being yet another cog in the machine. John wanted emotion, John NEEDED emotion, so John found emotion. John found Zelda, his true happiness. Zelda was the hand dragging John up from the endless compressing pit that swallowed him day after day. Then one day Zelda left John for Ike, her true love. John then began to build a mental wall, separating him from the world. This allowed him to feel no pain, but this also made it so he couldn't feel anything. John was walking through an alley one day when he found a velvet touch, a finale to his tragedy, a knife for his sheath, JOHN HAD FOUND HEROIN. John became addicted to heroin, numbing his numbness. Pushing John further down the pit he had once emerged from. One fateful day, however, John accidentally overdosed, with unprecedented side effects. John's face became so numb he could mold it into anybody he pleased. John was no longer John. John was just another fighter in the stadium of life. John became you, he became everyone, he became me, mi, Mii! Thus earning his title, Mii Fighter, the man that could disappear into everyone, the most notorious and feared man on the battlefield.