You can collect custom parts and then use them to customize characters.

Customize Special Attacks

One type of custom part lets you change the special attacks of fighters like Mario and Donkey Kong.

Each fighter possesses four special attacks; standard special, side special, up special, and down special. Each of these can be customized, however, so there are three variations for each direction. This means there are two classifications for special attacks: basic and custom.

However, Mii Fighters and Palutena don't have spin-off variations, but rather completely unique types of attacks.

You cannot use custom parts when playing With Anyone online. Please use these when playing With Friends.

Equippable Items

Equippable items are classified as another type of custom part. You can use these to power-up fighters.

You can equip up to 3 equippable items at a time. Equippable items fall into attack, defense, or speed categories.

It's not a simple matter of powering up every attribute, though. You can make it tougher for opponents to send you flying but pay for it with slower movement, or you can move more quickly but offset that advantage with weaker attacks. Your character's strength changes with each of the adjustments you make.

You collect equippable items in the various game modes. The items may have the same name, but their performance will be slightly different.

Incidentally, the way the character looks will not change.

Mii Fighter

Mii characters created in Mii Maker can join the fun as fighters.

You can choose from 3 types of fighters; brawlers, sword fighters, and gunners. Additionally, each type has 12 types of special attacks. (4 directions X 3 variations)

With custom parts, you can also change your fighter's hat and clothing.

You won’t be able to use Mii Fighters when you fight With Anyone online, but the plan is to enable this feature With Friends online.