Complete the Solar Array Puzzle

Find the Peng treasure

Kill a Brute without taking damage

Win the fight at the School

Kill the Tormenter

Get through the first Zero-G area

TK Impale a live Slasher to a surface using a Slasher's arm - it must stick to the surface

Impale an enemy and make him fly through the air for 17 meters - it must stick to the surface

Use Quick Heal ten times (single player only)

Dismember 25 Necromorph Limbs (single player only)

Parachute directly from the top of the Galata Tower to the golden horn.

Collect all of Ishak Pasha's memoir pages.