Collect all emblems.
Complete all missions without retrying.
Complete all missions using only one of the swords to attack.
Upgraded all Ninjutsu to their maximum level.
Complete all missions on Hard or higher game difficulty.
Collect all the outfits.
Achieve 10 "Perfect" button presses in a row during a Quick Time Event.
Complete Mission 008 without taking 1000 points of damage.
Upgraded all swords to their maximum level.
Complete Mission 009 without retrying.
Find all the Shinobi Moji.
Max out the Health Gauge.?
Max out the Chi Gauge.
Achieve a Total Play Result A+ ranking.
Complete all missions on Normal or higher game difficulty.
Continue playing to unlock this secret achievement.
Achieve a 100 Hit Combo.
Complete Mission 007 within 50 minutes.
Achieve a 50 Kill Combo.
Complete Mission 006 with a Max Kill Combo above 10.
Find 50% of the Shinobi Moji.
Complete Mission 005 within 40 minutes.
Complete Mission 002 with more than 20 Finish Attacks.
Complete Mission 004 with less than 30% jet plane damage.
Complete Mission 001 within 30 minutes.
Complete Mission 003 with a Max Hit Combo above 30.
Kill 25 enemies with the Finish Attack move.
Deflect 20 projectiles.
Use the Lightning Shuriken to charge the surface of water and shock an enemy.
Find an outfit.
Use the Flame Shuriken to set an enemy on fire.
Find an emblem.
Find a Shinobi Moji.
Upgrade a sword.
Destroy a piece of armor.
Use the Cyclone Shuriken to put out a fire.
Deflect an enemy's projectile.
Achieve a 3 Kill Combo.
Complete a Finish Attack.
Complete a Todomé attack.
Achieve a 10 Hit Combo.