Complete Chapter 3 on any difficulty setting

Kill 30 enemies with the Plasma Cutter

Dismember 20 Limbs

Simultaneously have four completely upgraded weapons

Dismember 2,500 Necromorph Limbs (single player only)

Complete all optional missions.

Complete Chapter 1: "Worlds Apart"

Break the cables supporting a container without falling on the containers stage

Escape from a grinder hazard on the grind stage

Attain ‘Naturalist’ status in Planet Zoology Scanned

Attain 'Pioneer' status in Space Exploration

Get your money back from a Templar tax collector.