Complete story mode on Easy difficulty

Achieve 8 medals on combat challenges

Find 60 treasures

Escape from Intensive Treatment to the island surface

Ride Titan henchman and knock down 10 thugs (any play mode)

Glide continuously for over 100m

Finish the game in Easy Mode

Defeat ten enemies with propane or acetylene tank explosions

Find 40 treasures

Take down Zsasz in the Patient Pacification Chamber

String up one henchman and drop him to surprise a second (any play mode).

Survive the nightmare of the Scarecrow's fear gas

Solve 55% of riddler challenges