Escape from Intensive Treatment to the island surface

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

Rescue the guards and henchman from the Joker toxin in Decontamination

Complete a combo of 5 moves (any play mode)

Hired a staff member

Clear a Challenge in Challenge Mode.

Complete Salamun District on any difficulty level

Kill 3 Helghast at once using the surrounding environment

Kill 30 Helghast using the StA3 fixed gun emplacement

Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health

Finish the game in under 12 hours.

The End.