Terrorize 10 guards.
Kill a guard by getting other guards to shoot him.
Throw the body of one guard to terrorize another.
Perform five different types of stealth kills in one level.
Distract 25 guards using environmental objects.
Complete a level without getting detected.
Save Azai from the mercenaries.
Perform 25 successful stealth kills.
Kill one guard.
Find all three scrolls in every level.
Earn all of the upgrades.
Complete a level without killing any guards.
Complete a level without killing any guards and without being detected.
Complete all of the challenge rooms.
Distract 25 guards using your equipment.
Kill a guard from inside the box.
Get the Undetected bonus 10 times in one level.
Within a single Focus, aim and throw three different types of items.
Stealth kill an elite guard after stunning him.
Stealth kill a guard from inside a dumpster.
Terrify a guard and cause him to stumble to his death.
Terrify a guard with a hanging stealth kill five times.
Assassinate Kelly, the mercenary captain.
Use a dead body to lure another guard and then stealth kill him.
Complete Dosan's Tale.
Stun an elite guard with moths then dispatch him.
View any of the developer commentaries.
Knock out an enemy again that was revived from being knocked out.
Complete one of the original Mark of the Ninja levels using the Path of Wisdom.
Dispatch two enemies at once using a body infected with Toxic Fungus.
Read one of the history lesson developer commentaries.
Disable a spotlight using the Dusk Moths.
Assassinate Karajan.
Escape from the Stronghold.
Determine your fate.
Complete the game in New Game Plus.
Earn three stars in every level.
Earn all three seals in every level.
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