This guide contains video for all of the non-story related achievements / trophies for Batman: Arkham Asylum.

Leave No Man Behind -- Rescue the guards and henchman from the Joker toxin in Decontamination -- 10 / Bronze
Rope-A-Dope-A-Dope -- String up one henchman and drop him to surprise a second (any play mode) -- 10 / Bronze

Catch! -- Catch a Batarang (any play mode) -- 5 / Bronze
Night Glider -- Glide continuously for over 100m -- 5 / Bronze

Freeflow Combo 5 -- Complete a combo of 5 moves (any play mode) -- 5 / Bronze
Freeflow Combo 10 -- Complete a combo of 10 moves (any play mode) -- 5 / Bronze
Freeflow Combo 20 -- Complete a combo of 20 moves (any play mode) -- 10 10 / Silver
Freeflow Combo 40 -- Complete a combo of 40 moves (any play mode) -- 10 10 / Silver

Freakshow Rodeo -- Ride Titan henchman and knock down 10 thugs (any play mode) -- 10 / Bronze

Freeflow Perfection -- Perform a perfect combo including all of Batman’s combat moves (any play mode) -- 10 10 / Silver
Party Pooper -- KO all the henchmen celebrating your arrival at the party -- 10 / Bronze

Flawless Freeflow Fighter -- Complete one combat challenge without taking damage -- 10 / Bronze

Mano-A-Mano -- Defeat Titan henchman without using Batarangs (any play mode) -- 10 / Silver