Defeated Stalker.

Finished the game without using Vita-Chambers.

Found every Power to the People weapon upgrade in the game.

Fully upgraded to the maximum number of Plasmid Slots.

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

Completed all research on every subject in Rapture.

Found 100 audio diaries.

Uncovered the secret of Dionysus Park.

Gathered 600 ADAM with Little Sisters.

Killed an enemy with its own projectile.

Hacked 30 machines at a distance with the Hack Tool.

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

Defeated 3 Big Daddies without dying during the fight.