The Doc - Do not drink the Doc's beverage

Collect 50% of the prize bubbles on the story levels

Hassan's Shop - Persuade the Robber to leave

Kill 50 enemies with the AK-47

Find 40 treasures

Kill 50 enemies in a row without dying

Complete all levels in The Savannah

Start the Single Player Campaign on any difficulty.

Kill 100 Creatures across all levels

Survive the nightmare of the Scarecrow's fear gas

Make it to Westminster. Complete "Mind the Gap" on any difficulty.

Escape the mountain safe house. Complete "Persona Non Grata" on any difficulty.

Complete the first Hard-Light Surfaces test