Confronted Lamb's lieutenant in Pauper's Drop.

Defeated 3 Big Daddies without dying during the fight.

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

Defended yourself against the Big Sister without dying.

Adopted a new Little Sister for the very first time.

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

Found your way back into the ruins of Rapture.

Photograph all Landmarks on the Map

Perch atop Avengers Tower

Complete a level 1 Traversal Benchmark

Collect 5 Backpacks

The player has completed the game without harvesting any Little Sisters