Mii Fighter Costumes
Base Game Costumes
All of the Base Game Mii Fighter Costumes are from Nintendo franchises and are returning costumes from Ultimate.
Base Costumes
- Mushroom Hat Set (1-Up Mushroom Hat, Super Mushroom Hat)
- Ancient Set (Ancient Helm, Ancient Soldier Gear)
- Arcade Bunny Hat
- Ashley Set (Ashley Wig, Ashley Outfit)
- Astronaut Set (Astronaut Helmet, Astronaut Outfit)
- Barbara the Bat Wig
- Bear Set (Bear Hat, Bear Suit)
- Biker Gear
- Bionic Set (Bionic Helmet, Bionic Suit)
- Black Knight Set (Black Knight Helm, Black Knight Armor)
- Business Suit
- Butler Set (Top Hat, Butler Outfit)
- Callie Set (Callie Wig, Callie Outfit)
- Captain Falcon Helmet
- Cat Set (Cat Hat, Cat Suit)
- Champion's Wig
- Chibi-Robo Set (Chibi-Robo Hat, Chibi-Robo Outfit)
- Chomp Hat
- Chrom Wig
- Crown Set (Daisy's Crown, Peach's Crown, Prince's Crown, Princess's Crown, Regal Crown)
- Cybernetic Suit
- Devil Horns
- Dixie Kong's Hat
- Dragon Set (Dragon Helmet, Dragon Armor)
- Dunban Set (Dunban Wig, Dunban Outfit)
- Fighter Uniform
- Floral Hat
- Flying Man Set (Flying Man Hat, Flying Man Outfit)
- Fox Hat
- High-Tech Armor
- Inkling Squid Hat
- Inkling Wig
- Isaac Wig
- Isabelle Hat
- Judd Hat
- King K. Rool Set (King K. Rool Hat, King K. Rool Outfit)
- K.K. Slider Set (K.K. Slider Hat, K.K. Slider Outfit)
- Link Set (Link Cap, Link Outfit)
- Lip Set (Lip Wig, Lip Outfit)
- Magic Hat
- Maid Set (Lacy Headband, Maid Outfit)
- Majora's Mask
- Marie Set (Marie Wig, Marie Outfit)
- Marx Hat
- Mecha Suit
- Meta Knight Mask
- Monkey Set (Monkey Hat, Monkey Suit)
- Mr. Saturn Hat
- Nia Wig
- Ninja Set (Ninja Headband, Ninja Suit)
- Ninjara Set (Ninjara Wig, Ninjara Outfit)
- Octoling Wig
- Pirate Set (Pirate Wig, Pirate Outfit)
- Princess Zelda Wig
- Protective Gear
- Ray Mk III Set (Ray Mk III Helmet, Ray Mk III Armor)
- Rex Set (Rex Wig, Rex Outfit)
- Ribbon Girl Set (Ribbon Girl Mask, Ribbon Girl Outfit)
- Saki Amamiya Set (Saki Amamiya Wig, Saki Amamiya Outfit)
- Samus's Helmet
- Sheik Mask
- Shy Guy Mask
- Skull Kid Set (Skull Kid's Hat, Skull Kid's Outfit)
- Special Forces Set (Special Forces Helmet, Special Forces Outfit)
- Spiny Hat
- Splatoon 2 Set (Splatoon 2 Hat, Splatoon 2 Outfit)
- Spring Man Set (Spring Man Mask, Spring Man Outfit)
- SSB T-shirt
- Standard Outfit
- Steampunk Getup
- Super Mario Cap Set (Builder Mario's Hat, Cappy Hat, Luigi's Cap, Mario's Cap, Waluigi's Cap, Wario's Cap)
- Takamaru Set (Takamaru Wig, Takamaru Outfit)
- Team Rocket Set (Team Rocket Hat, Team Rocket Outfit)
- Toad Set (Toad Hat, Toad Outfit)
- Toy-Con Set (Toy-Con Visor, Toy-Con Outfit)
- Tracksuit
- Vampire Garb
- Vince Set (Vince's Hat, Vince's Outfit)
- Viridi Set (Viridi Wig, Viridi Outfit)
- Wild West set (Wild West Hat, Wild West Wear)
- Woolly Yoshi Hat
- Yiga Clan Set (Yiga Clan Mask, Yiga Clan Outfit)
DLC Costume Packs
12 costumes packs are released as post launch DLC. There are 11 Guest packs and 1 Nintendo pack.
- Arc System Works Pack
- Bandai Namco Pack
- Capcom Pack
- Cygames Pack
- Indie Pack
- Konami Pack
- Microsoft Pack
- Nexxon Pack
- Nintendo Pack
- Sega Pack
- SNK Pack
- Square Enix Pack