Mano-a-mano
Defeat Titan henchman without using Batarangs (any play mode)
World's Greatest Detective
Spirit of Amadeus Arkham revealed
Catch!
Catch a Batarang (any play mode)
Crack The E Nigma
Solve every riddle on the island
Night Glider
Glide continuously for over 100m
Riddle Resolver
Solve 85% of Riddler challenges
Mental Athlete
Solve 70% of Riddler challenges
Freeflow Combo 40
Complete a combo of 40 moves (any play mode)
Flawless Freeflow Fighter
Complete one combat challenge without taking damage
IQ Test
Solve the first riddle
Wrecking Ball
Stop the unstoppable
Gladiator
Last man standing
Communication Breakdown
Clear the airwaves
Arkham City Sirens
Drop in on an old friend
One-Armed Bandit
Hammer the point home
Chimney Sweep
There is only one way in
Savior
Save the medical volunteers
Acid Bath
Save the damsel, but is she in distress?
I'm Batman
Become the Bat
Flying Colours
Get your A Class License