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