Batman Arkham Origins Boss Fight Guide

Firefly -

Once you diffuse all the bombs, Firefly appears..This fight will take place at different places all over the bridge through wreckage,flames and all bricks etc. In the first phase...He is going to use Flamethrowers..There will appear a red line above him letting you know when he will be firing.Once he stops it feel free to throw some batrangs(Double tap LT for xbox)..I recommend using Glue Grenades(Double tap RT) as well making him immobile and then you are again free to throw batrangs...Once he dozes of use Bat Grapple and pull him..

Next you will have to run..Go from under the truck..

Here he will use some lasers and bombs..You have to follow the same principal as in before cases..GlueGrenade - > Batrang ->Bat Grapple.Once Firefly's health is real low,there will be a cut-scene where you have to grapple him.Then he will make you go through various obstacles like poles,flames etc.You have to counter them.There will be one more cut-scene where you defeat Firefly...