Collect 100 logs

Upgrade your RIG and Stasis completely

Destroy the Tripod Nest

Complete the Solar Array Puzzle

Defeat the AI

Win the fight at the School

Kill the Tormenter

Get through the first Zero-G area

Use Quick Heal ten times (single player only)

Survive the Train Sequence

Destroy 10 mutated pods in any one level of Training Grounds.

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