Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Colossal Warrior	Defeat Deikrag.
A Fly in our Web	Defeat Rhyvashi.
A Spider's Weapon	Purchase any Secret Arts item.
A Test of Valor	Find a Crystal Skull.
Art of the Inferno	Finish 1-2 without taking any Fire damage.
Be Always Brave	Unlock all the Achievements.
Better Equipped	Purchase any Talisman.
Bladewalker	Finish Act 3.
Demon Altar	Interact with a Demon Altar for the first time.
Demon Vanquisher	Slay 3,000 enemies.
Endless Struggle	Finish the secret final level.
Gold Hunter	Find a Golden Scarab.
Hanging in the Bullet	Finish 4-5 without falling into the abyss.
High Efficiency	Slay seven enemies at once using a single attack.
Inner Peace	Unlock Ending B.
Legacy	Finish the Prologue.
Legendary Hunter	Find all Scarabs.
Legendary Ninja	Get your first S++ rank.
Meliora	Find a Triple Scarab.
Ninja Revenge!	Slay any enemy that previously killed you.
Path of the Ninja	Finish Act 1.
Path of the Spider	Finish Act 2.
Secret Arts Collector	Purchase all Secret Arts items.
Shadow Warriors	Unlock and finish all Secret Ops levels.
Talisman Collector	Purchase all Talismans.
Tentacle Crusher	Defeat Obsidrae.
The Challenge of the Mountain	Finish 3-2 without dying.
The Fate of the Giant	Find all Crystal Skulls.
The Power of Two	Defeat Gurthka.
The Swiftness of the Spider	Finish 2-2 after picking up all collectibles on the same run.
The Way of the Hayabusa Clan	Slay 500 enemies with Hypercharged Attacks.
Ultimate Ninja	Get your first S rank.
Undercover Ninja	Unlock a Secret Ops level.
Venom	Unlock Ending A.
Weapon Hoarder	Purchase all items from Muramasa's Shop.
Window Shopper	Visit Muramasa's Shop.