Mii Fighters, a completely customizable fighter that originated from Super Smash Bros. for Nintendo 3DS & Wii U, have returned as fighters in Super Smash Bros. Quantum! Additionally, the three returning classes are joined by seven new ones, creating a selection of 10 unique classes to choose from.
The final returning class, Mii Gunners have mysterious arm cannons for weapons and have average stats between the other two returning classes. They, unlike the other two classes, excel in projectile attacks instead of melee attacks.
The first announced new class, Mii Acrobats wield balancing rods as weapons and wear leotard-like uniforms. They are the lightest of all classes, have good range due to their rod weapon, and have multiple jumps like Kirby or Jigglypuff.
The second new class to be announced, Mii Grenadiers wear bandoliers of Smash Ball-like grenades across their chest. They specialize in all kinds of bombs, each of which has a different effect and trajectory.
Mii Cannoneers wield massive bazooka-like cannons and wear uniforms similar to an army grunt. Like Mii Gunners, Mii Cannoneers specialize in ranged attacks, but due to the bazooka's weight, Cannoneers are much heavier and slower, but also much more powerful.
Mii Singers are more in line with Wii Music than Super Smash Bros., but these fancily dressed fighters make it work out. They focus on various sound and dance-based attacks, making them a mixed bag of combat potential.
Decked out in bronze armor and wielding a shield and spear, Mii Guardians are perfect for Smash's gladiatorial battles. They specialize more in defense than offense, making them harder to KO than other Mii classes.