Alternate costumes...
	Various Achievements...
	Various Unlockables...

How to unlock alternate costumes for Ryu, Ayane, Kasumi & Momiji. You can only obtain Crystal Skulls on Normal or higher difficulty, also you only need to pick up the Crystal Skull to unlock Ryu & Ayane's 4th costume.

Costume	How to unlock
Kasumi's 3rd costume	Beat 25 Ninja Trials with Kasumi.
Kasumi's 4th costume	Beat 50 Ninja Trials with Kasumi.
Momiji 3rd costume	Beat 25 Ninja Trials with Momiji.
Momiji 4th costume	Beat 50 Ninja Trials with Momiji.
Ryu and Ayane 3rd costume	Collect all 50 scarabs.
Ryu and Ayane 4th costume	Collect all 10 Crystal Skulls.

Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Advent of the Goddess (15 points)	Finished Day 7.
Antediluvian Slumber (15 points)	Finished Day 3.
Bloody Rage (10 points)	Reached the maximum karma multiplier during Bloody Rage.
Bumpy Ride (10 points)	Finished Day 2.
Cooperation (10 points)	Finished Day 2 - Ayane.
Crystal Skull (50 points)	Cleared all Tests of Valor.
Dark Savior (10 points)	Saved an ally.
Dual Sword Master (15 points)	Defeated 1,000 enemies with Dual Swords.
Eclipse Scythe Master (15 points)	Defeated 1,000 enemies with the Eclipse Scythe.
Falcon Dive (5 points)	Successfully mastered the Falcon Dive technique.
Falcon's Talons Master (15 points)	Defeated 1,000 enemies with the Falcon's Talons.
Feat of a Hundred Slashes (20 points)	Achieved a 100-hit combo.
Flying Bird Flip (5 points)	Successfully mastered the Flying Bird Flip technique.
Fuma Kodachi Master (15 points)	Defeated 1,000 enemies with the Fuma Kodachi.
Golden Scarab (30 points)	Obtained all Golden Scarabs.
Hayabusa Style Grand Master (15 points)	Reached Level 50.
Heavenly Dragon Master (15 points)	Defeated 1,000 enemies with the Heavenly Dragon.
I Got Your Back (10 points)	Completed a Co-op Ninja Trial.
Initiate (10 points)	Cleared 10 Acolyte Trials.
Initiation (5 points)	Played a Clan Battle.
Izuna Drop (5 points)	Successfully mastered the Izuna Drop technique.
Katana Master (15 points)	Defeated 1,000 enemies with the Katana.
Kunai Climb (5 points)	Successfully mastered the Kunai Climb technique.
Kunoichi (30 points)	Cleared all chapters with Ayane, Momiji, and Kasumi.
Kusari-gama Master (15 points)	Defeated 1,000 enemies with the Kusari-gama.
Lone Ninja (30 points)	Cleared 10 Solo Trials.
Lunar Staff Master (15 points)	Defeated 1,000 enemies with the Lunar Staff.
Master Ninja (75 points)	Cleared the game on Master Ninja difficulty.
Mentor (50 points)	Cleared the game on Hard difficulty.
Ninpo Master (5 points)	Successfully mastered a Ninpo spell.
Obliteration Technique (5 points)	Successfully mastered the Obliteration Technique.
On Your Own (10 points)	Finished Day 6 - Ayane.
Overlord (50 points)	Cleared 5 Master Ninja Trials.
Prestige (10 points)	Cleared 5 Leader Trials.
Shinobi (30 points)	Cleared the game on Normal difficulty.
Shrouded Moon Master (15 points)	Defeated 1000 enemies with the Shrouded Moon.
Sliding (5 points)	Successfully mastered the Sliding technique.
Steel on Bone (5 points)	Successfully mastered the Steel on Bone technique.
Steel on Steel (10 points)	Destroyed the Spider Tank.
Teamwork (15 points)	Won a Clan Battle.
The Great Escape (15 points)	Finished Day 4.
The Grip of Murder (10 points)	Finished Day 1.
The Karma of a Shinobi (15 points)	Finished Day 5.
Ultimate (100 points)	Cleared 3 Ultimate Ninja Trials.
Ultimate Ninja (100 points)	Cleared the game on Ultimate Ninja difficulty.
Ultimate Technique (5 points)	Successfully mastered an Ultimate Technique.
Veteran (10 points)	Cleared 10 Mentor Trials.
Waiting (15 points)	Finished Day 6.
Wall Run (5 points)	Successfully mastered the Wall Run technique.
You Got Skills (30 points)	Unlocked all Ninja Skills for Hayabusa, Ayane, Momiji, Kasumi, and Unknown Ninja.

Unlockable	How to unlock
Amarath Clothing	Level up Unknown Ninja to LVL96.
Beret Headgear	Level up Unknown Ninja to LVL75.
Big Hair Headgear	Clear 2 Ultimate Ninja Trials.
Chapter Challenge	Clear the game on Hero, Normal, or Hard.
Cowboy Headgear	Level up Unknown Ninja to LVL78.
Dark Ninja Armor	Clear 5 Kill The Leader Contracts in Clan Battle.
Dark Ninja Headgear	Clear 1 Ultimate Ninja Trial.
Genbu Armor	Clear 15 Master Trials.
Genbu Headgear	Clear 5 Master Trials.
Gold Clothing	Level up Unknown Ninja to LVL99.
Hayabusa Armor	Clear 5 Ultimate Ninja Trials.
Hayabusa Headgear	Clear 4 Ultimate Ninja Trials.
Kasumi	Clear the game on Hero, Normal, or Hard.
Knight Armor	Level up Unknown Ninja to LVL72.
Knight Headgear	Level up Unknown Ninja to LVL29.
Master Ninja	Clear the game on Hero, Normal ,or Hard.
Midnight Curse Armor	Clear 5 Betrayal Contracts in Clan Battles.
Momiji	Clear Day 5.
Mummy Headgear	Clear 10 Master Trials.
Regent Headgear	Clear 3 Ultimate Ninja Trials.
Sky Clothing	Level up Unknown Ninja to LVL90.
Special OPS Armor	Level up Unknown Ninja to LVL90.
Three Strokes Headgear	Level up Unknown Ninja to LVL81.
Twilight Clothing	Level up Unknown Ninja to LVL93.
Ultimate Ninja	Clear the game on Master Ninja.