Killed 50 enemies using only hacked Security.

Killed an enemy with its own projectile.

Confronted Lamb's lieutenant in Pauper's Drop.

Installed the third upgrade to a weapon.

Researched a Splicer with the Research Camera.

Bought one Plasmid or Tonic Slot at a Gatherer's Garden.

Hacked one of each kind of machine.

Defended yourself against Lamb's assault in the train station.

The player has completed the game without harvesting any Little Sisters

The player has become a Big Daddy

Successfully invent at least 100 items

The player has broken Fontaine's mind control

Fully research the Nitro Splicer