Mii Swordfighter

are recurring characters in.

NaN Mii Swordfighters are one of three types of customizable introduced in. Their appearances are based on characters created by the player, and are further customized with a variety of unlockable NaN Mii Outfits and NaN Mii Headgears. NaN Mii Swordfighters are the only type of Mii fighter that can wear the Link Outfit, which equips the Mii with the Series:; all NaN Mii Headgears can be worn by all three types of Mii fighters.

One of the SSB4:'s possible moves, the Hero's Spin, functions identically to SSB4:'s SSB4:; when performed on the ground, the move can be charged for greater power, while in the air, it will rise upward and finish with a powerful upward slash. The SSB4:'s "down" is a slower version of SSB4:'s, while its  attack is the same as SSB4:'s.

NaN Mii Swordfighters return in with several changes to their moves. Their now closely resembles SSBU:'s, their Back aerial attack leans slightly for added reach, and their  attack is a spinning variation of SSBU:'s SSBU: that can connect with multiple hits. The "down" Taunt has also been sped up to match SSBU:'s. NaN Mii Swordfighters can wear all of the NaN Mii Outfits based on except for SSBU:'s Outfit, and can wear all available NaN Mii Headgears, including the SSBU:, SSBU:, and the SSBU:.