Here is the full list of all 48 [NINJA GAIDEN: Master Collection] NINJA GAIDEN 3: Razor's Edge achievements.
Cleared the game on Normal difficulty.
Strengthened the Falcon's Talons to Level 3.
Strengthened the Lunar Staff to Level 3.
Strengthened the Eclipse Scythe to Level 3.
Finished Day 7.
Strengthened the Dual Swords to Level 3.
Finished Day 6 - Ayane.
Finished Day 6.
Strengthened the Fuma Kodachi to Level 3.
Defeated 1,000 enemies with the Katana.
Strengthened the Katana to Level 3.
Finished Day 5.
Finished Day 4.
Reached the maximum karma multiplier during Bloody Rage.
Achieved a 100-hit combo.
Finished Day 3.
Finished Day 2 - Ayane.
Finished Day 2.
Successfully mastered the Izuna Drop technique.
Finished Day 1.
Successfully mastered an Ultimate Technique.
Successfully mastered the Steel on Bone technique.
Successfully mastered a Ninpo spell.
Successfully mastered the Obliteration Technique.
Obtained all achievements.
Cleared the game on Hard difficulty.
Cleared the game on Master Ninja difficulty.
Cleared the game on Ultimate Ninja difficulty.
Defeated 1,000 enemies with Dual Swords.
Defeated 1,000 enemies with the Falcon's Talons.
Defeated 1,000 enemies with the Lunar Staff.
Strengthened the Kusari-gama to Level 3.
Defeated 1,000 enemies with the Kusari-gama.
Defeated 1,000 enemies with the Eclipse Scythe.
Defeated 1,000 enemies with the Fuma Kodachi.
Strengthened the Heavenly Dragon to Level 3.
Defeated 1,000 enemies with the Heavenly Dragon.
Strengthened the Shrouded Moon to Level 3.
Defeated 1000 enemies with the Shrouded Moon.
Cleared all Tests of Valor.
Obtained all Golden Scarabs.
Cleared all chapters with Ayane, Momiji, and Kasumi.
Unlocked all Ninja Skills for Hayabusa, Ayane, Momiji and Kasumi.
Cleared 10 Acolyte Trials.
Cleared 10 Mentor Trials.
Cleared 5 Leader Trials.
Cleared 5 Master Ninja Trials.
Cleared 3 Ultimate Ninja Trials.