Kill 10 enemies in a row using only Gauntlet after obtaining the Revolver

Hit 45 weakspots

Unlocked 1999 Mode.

Finished the game on the hardest difficulty level.

Escaped Rapture.

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.

Defeated the Preacher.