Killed 15 enemies with the Hunter's action skill

Earned level 5

The player has completed the game without harvesting any Little Sisters

Acquire all upgrades for all weapons

Take at least one photo in every research group

The player has either Harvested or Rescued every possible Little Sister

Purchased every slot in all four Plasmid and Tonic tracks

The player has entered Sander Cohen's personal quarters

Fully upgrade four weapons

Fully research the Little Sister

The player has fully upgraded three weapons

The player has fully upgraded two weapons

The player has completed Sander Cohen's great masterpiece