Destroy any Helghast APC during battle

Destroy all Leech Pods in The Cruiser

Platinum

Kill 10 enemies with grenades by aiming while hanging from a ledge

Finish the game in Hard Mode

Kill 30 enemies with the M79

Find 55 treasures

Kill three enemies with one explosion five times

Kill five enemies in a row with a single punch, after softening them up with gunfire

Kill 20 enemies melee-attacking from behind

Complete Tharsis Refinery on any difficulty level

Kill five enemies in a row with a brutal combo

Kill five enemies with a single punch, after softening them up with gunfire