Spent 2000 dollars at Vending Machines.

Installed the third upgrade to a weapon.

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 first time.

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

Found your way back into the ruins of Rapture.

Purchased 1 upgrade in the Motor Forge

Beat the game

Solve the Three Judges

Acquire the Boreas Icestorm

Kill Cronos

Gut 3 Centaur Generals