Obtain 30 pieces of Treasure Art.

Complete the game as a Sorceress.

Obtain 20 pieces of Treasure Art.

Bury 100 sets of bones.

Reveal the mystery watcher

Master the World's Greatest Detective Dark Knight track

Defeat the Joker

Use the Batwing to travel to all Fast Travel points

Decipher one Extortion File

Save a life

Glide 26 miles total in the Main Story

Find the Black Mask

Complete a predator encounter using only silent takedowns in the Main Story