Complete the following tasks to unlock Nintendo Universe Costumes.

Costume	How to unlock
Fox McCloud	Gun attacks become Arwing attacks; alternate sound when picking up items; Arwing appears instead of jet fighters in Chapter I and Chapter XVI.
Galatic Bounty Hunter	Panther Within transformed into Samus's Morph Ball, allowing you to give Light damage to enemies; double-jump changed into Screw Attacks; gun attacks becomes into Samus' Classic Arm Cannon.
Hyrule Costume	Allows you to parry enemy attacks without Moon of Mahaa-Kalaa; plays music from Zelda series when chests are opened; Halos and Orbs become rupees; Shuraba becomes Link's Master Sword.
Mushroom Kingdom Princess and Sarasaland Princess	Allows you to summon the power of Bowser; Halos and Orbs become coins.