Kill a guard by getting other guards to shoot him.
Perform five different types of stealth kills in one level.
Within a single Focus, aim and throw three different types of items.
View any of the developer commentaries.
Read one of the history lesson developer commentaries.
Use a dead body to lure another guard and then stealth kill him.
Distract 25 guards using your equipment.
Complete a level without killing any guards and without being detected.
Complete a level without killing any guards.
Distract 25 guards using environmental objects.
Perform 25 successful stealth kills.
Complete a level without getting detected.
Save Azai from the mercenaries.
Throw the body of one guard to terrorize another.
Kill one guard.
Find all three scrolls in every level.
Earn all of the upgrades.
Complete all of the challenge rooms.
Terrorize 10 guards.
Kill a guard from inside the box.
Get the Undetected bonus 10 times in one level.
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.
Complete Dosan's Tale.
Stun an elite guard with moths then dispatch him.
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.
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.
