Maxed out one Research Track.

Got through a Gather with no damage and no one getting to the Little Sister.

Joined forces with Sinclair in Ryan Amusements.

Adopted a new Little Sister for the very first time.

Upgraded a weapon at a Power to the People Station.

Unlocked all trophies

Complete the game on Hard difficulty without using a Vita-Chamber.

The player has entered Sander Cohen's personal quarters

Acquire all upgrades for all weapons

The player has completed the game on the Hard difficulty setting

The player has completed the game without harvesting any Little Sisters

Fully research the Bouncer

The player has become a Big Daddy