Spill 500 buckets of blood on Kratos

Defeat the infected Hand of Aegaeon

Clear a directive from Hasegawa.

Use the Atomizer secondary fire to kill 30 enemies

Fully upgrade one weapon in Campaign Mode

Kill 25 enemies firing the Auger through an object

Complete "The Fetid Waters" in Story Mode

Complete "Scream Train" in Story Mode

Collect 15 figurines

Kill 5 or more mutants with one grenade

Complete "Ballistic Trauma" in Story Mode

Complete a level without triggering an enforced reload (i.e. reaching zero bullets)