Batman: Arkham Asylum

Big Bang

Deliver an explosive knock out blow to the Joker (Easy difficulty)

Bigger Bang

Deliver an explosive knock out blow to the Joker (Normal difficulty)

Biggest Bang

Deliver an explosive knock out blow to the Joker (Hard difficulty)

Party Pooper

KO all the henchmen celebrating your arrival at the party

Freeflow Combo 20

Complete a combo of 20 moves (any play mode)

Freeflow Combo 40

Complete a combo of 40 moves (any play mode)

Night Glider

Glide continuously for over 100m

Rope-A-Dope-A-Dope

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

Mano-A-Mano

Defeat Titan henchman without using Batarangs (any play mode)

Catch!

Catch a Batarang (any play mode)

Freeflow Combo 5

Complete a combo of 5 moves (any play mode)

Freeflow Combo 10

Complete a combo of 10 moves (any play mode)

Freeflow Perfection

Perform a perfect combo including all of Batman's combat moves (any play mode)

Freakshow Rodeo

Ride Titan henchman and knock down 5 thugs (any play mode)

Freeflow Bronze

Achieve 8 medals on combat challenges

Freeflow Silver

Achieve 16 medals on combat challenges

Freeflow Gold

Achieve 24 medals on combat challenges

Predator Bronze

Achieve 8 medals on predator challenges

Predator Silver

Achieve 16 medals on predator challenges

Predator Gold

Achieve 24 medals on predator challenges

Invisible Predator

Complete one predator challenge by using only Silent Takedowns and without being detected

Flawless Freeflow Fighter

Complete one combat challenge without taking damage

Crack The E Nigma

Solve every riddle on the island

Arkham Analyst

Solve 5% of Riddler challenges

Cryptic Investigator

Solve 10% of Riddler challenges

Lateral Thinker

Solve 25% of Riddler challenges

Mystery Solver

Solve 40% of Riddler challenges

Conundrum Cracker

Solve 55% of Riddler challenges

Mental Athlete

Solve 70% of Riddler challenges

Riddle Resolver

Solve 85% of Riddler challenges

World's Greatest Detective

Spirit of Amadeus Arkham revealed

Perfect Knight

100% Complete