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