Complete the indicated task to unlock the corresponding costume.

Costume	How to unlock
Ayane's Phantom Butterfly	Purchase for 1.5 million Karma.
Ayane's Blossom of Miyama	Collect all 50 Golden Scarabs.
Ayane's Raging God - Nine of Violet	Find all 10 Crystal Skulls.
Ayane's Infiltrator	Available by default in patched Wii U versions; preorder bonus in PlayStation 3 and Xbox 360 versions.
Momiji's Purifying Flame	Purchase for 1.5 million Karma.
Momiji's Ascetic White	Complete 25 different trials as Momiji.
Momiji's Indigo Happi	Complete 50 different trials as Momiji.
Momiji's Hot Police	Available by default in patched Wii U versions; preorder bonus in PlayStation 3 and Xbox 360 versions.
Kasumi's Brilliant Lapis	Purchased for 1.5 million Karma.
Kasumi's Immaculate White	Complete 25 different trials as Kasumi.
Kasumi's Gentle Snowfall	Complete 50 different trials as Kasumi.
Kasumi's Tropical Sailor	Available by default in patched Wii U versions; preorder bonus in PlayStation 3 and Xbox 360 versions.
Ryu's Traditional Dark Blue	Purchase for 3 million Karma.
Ryu's Dragon Muscle Suit	Find all 50 Golden Scarabs.
Ryu's Fiend Hayabusa	Find all 10 Crystal Skulls.
Ryu's Spirit of the Fighter	Available by default in patched Wii U versions; preorder bonus in PlayStation 3 and Xbox 360 versions.
Ryu's Epigonos - Nightmare Brought to Life	Have a saved game file from Ninja Gaiden 3; PlayStation 3 and Xbox 360 only.