Completed all research on every subject in Rapture.

Reunited with your original Little Sister.

Saved every Little Sister and spared Grace, Stanley and Gil.

Dealt with every Little Sister.

Fully upgraded one Plasmid to the Level 3 version.

Killed an enemy with its own projectile.

Gathered 600 ADAM with Little Sisters.

Installed the third upgrade to a weapon.

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

Maxed out one Research Track.

Defeated 3 Big Daddies without dying during the fight.

Defended yourself against the Big Sister without dying.