Earned by performing combos, kills, and Ultimate Techniques (holding the heavy attack button when your weapon glows red). Karma is used to purchase weapon upgrades, new skills, and costumes.

In addition to Ryu Hayabusa, you can play as Ayane (who has her own dedicated story chapters), Momiji , and Kasumi .

Collectible items hidden throughout the stages. Finding them unlocks rewards like health upgrades and new weapons.