List of Mii outfits and headgear by unlock criteria (SSB4-3DS)

In , some Mii outfits and headgear are available from the start, while others are collectable. Each outfit and headgear has its own unlock criteria: some are unlocked through challenges, while others are found randomly in various game modes. This article documents the unlock criteria for each of them.
==Starter==
The following outfits and headgear are available from the start.
Piece 	Type
None 	Headgear
Cat Ears 	Headgear
Straw Hat 	Headgear
Hibiscus 	Headgear
Ninja Headband 	Headgear
Devil Horns 	Headgear
Cowboy Hat 	Headgear
Western Hat Wild West Hat 	Headgear
Standard Outfit 	Outfit (all)
Tracksuit 	
Vampire Garb Vampire Outfit 	
Ninja Suit Ninja Outfit 	
Cybernetic Suit 	
Wild West Wear Wild West Outfit 	
High-Tech Armor 	
K.K. Slider Hat, K.K. Slider Outfit	Headgear, Gunner outfit
==Challenges==
Piece 	Type 	How to unlock
Football Helmet 	Headgear	Create 1 or more s in Custom.
Super Mushroom Hat	Headgear	Play Rival Smash for the first time.
Luigi's Cap 	Headgear	Win 3 Smash battles with .
Princess Zelda Wig	Headgear	Win 2 Smash battles with .
Samus's Helmet 	Headgear	Win 10 Smash battles with .
Spartan Helmet 	Headgear	Collect 5 unique custom outfits.
Top Hat 	Headgear	Create 8 or more s in Custom.
Regal Crown 	Headgear	Clear All-Star with all characters.
Steampunk Getup 	 	Destroy all red targets in Target Blast.
Protective Gear 	 	Get a max combo of 100 or more in Training.
Princess's Crown 	Headgear	Have the game on for more than 20 hours.
Lion Hat 	Headgear	Get 4 or more KOs in Cruel Smash.
Prince Hat 	Headgear	Collect all Smash Run Powers.
==Downloadable==
The following outfits and headgear are available to buy from the Nintendo eShop. If an outfit and a piece of headgear are listed in the same row, they come as a bundle for the price of one outfit. See Downloadable content#Mii Fighter costumes for the pricing.
===Wave 1===
The following items were released on April 15th, 2015.
Piece 	Type
Majora's Mask 	Headgear
SSB T-Shirt 	Outfit (all)
Link Cap, Link Outfit 	Headgear, Swordfighter outfit
's Helmet, X's Armor 	Headgear, Gunner outfit
Proto Man's Helmet, Proto Man's Armor	Headgear, Gunner outfit
Dunban Wig, Dunban Outfit 	Headgear, Swordfighter outfit
Cat Hat, Cat Suit 	Headgear, Brawler outfit
Monkey Hat, Monkey Suit 	Headgear, Swordfighter outfit
===Wave 2===
The following items were released on June 14th, 2015.
Piece 	Type
Isabelle Hat, Isabelle Outfit 	Headgear, Gunner outfit
's Helmet, Zero's Armour 	Headgear, Swordfighter outfit
MegaMan.EXE's Helmet, MegaMan.EXE's Armour	Headgear, Gunner outfit
Inkling Wig, Inkling Outfit 	Headgear, Gunner outfit
Inkling Squid Hat 	Headgear
Heihachi Wig, Heihachi's Outfit 	Headgear, Brawler outfit
Akira Wig, Akira's Outfit 	Headgear, Brawler outfit
Jacky Wig, Jacky's Outfit 	Headgear, Brawler outfit
===Wave 3===
The following items were released on July 31st, 2015.
Piece 	Type
Bear Suit Hat, Bear Suit 	Headgear, Gunner outfit
Lloyd Wig, Lloyd's Outfit 	Headgear, Swordfighter outfit
Flying Man Hat, Flying Man Outfit 	Headgear, Brawler outfit
King K. Rool Hat, King K. Rool Outfit 	Headgear, Brawler outfit
Chrom Wig, Chrom's Outfit 	Headgear, Swordfighter outfit
Black Knight's Helm, Black Knight's Armour 	Headgear, Swordfighter outfit
Samus's Helmet, Samus's ArmourSamus's Helmet is unlocked by purchasing the set if it was not already randomly unlocked.	Headgear, Gunner outfit
Hoodie 	Outfit (all)
===Wave 4===
The following items were released on September 30th, 2015.
Piece 	Type
Hunter's Helm, Hunter's Mail 	Headgear, Swordfighter outfit
Rathalos Helm, Rathalos Mail 	Headgear, Swordfighter outfit
Fox Hat, Fox Outfit 	Headgear, Gunner outfit
Viridi Wig, Viridi's Outfit 	Headgear, Swordfighter outfit
Toad Hat, Toad Outfit 	Headgear, Brawler outfit
Business Suit 	Outfit (all)
Captain Falcon's Helmet, Captain Falcon's OutfitCaptain Falcon's Helmet is unlocked by purchasing the set if it was not already randomly unlocked.	Headgear, Brawler outfit
===Wave 5===
The following items were released on December 16th, 2015.
Piece 	Type
Geno's Hat, Geno Outfit	Headgear, Gunner outfit
Chocobo Hat 	Headgear
===Wave 6===
The following items were released on February 4th, 2016.
Piece 	Type
Ashley Wig, Ashley's Outfit 	Headgear, Swordfighter outfit
Bionic Helmet, Bionic Armour 	Headgear, Brawler outfit
Knuckles Hat, Knuckles Outfit 	Headgear, Brawler outfit
Gil's Helmet, Gil's Armour 	Headgear, Swordfighter outfit
Tails Hat, Tails Outfit 	Headgear, Gunner outfit
Takamaru Wig, Takamaru's Outfit	Headgear, Swordfighter outfit
Players who pre-ordered or purchased at GameStop stores or gamestop.com during a promotional period were able to receive limited-offer download codes to obtain these items for free.
==Random==
All other outfits and headgear appear randomly in various places in the game. For a complete list, please refer to Alternate costume (SSB4)#Mii Fighter. These outfits and headgear:
* Appear as items during Vs. matches as long as at least one item is turned on.
* Can be dropped by Mew randomly (but it may still drop a trophy instead).
* Can be collected by breaking a customization block in Trophy Rush or Target Blast.
* Can be awarded for clearing a round of if the roulette stopped on a customization symbol.
* Appear in the All-Star Rest Area after clearing certain rounds.
* Can be collected in the Home-Run Contest if Sandbag touches it.
* Can be obtained by collecting Custom Parts dropped by enemies or found in chests in Smash Run.
* Can be earned by scanning an Amiibo after it fought in a match.
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