Dealt with every Little Sister.

Uncovered the secret of Dionysus Park.

Defeated the Preacher.

Killed 50 enemies using only hacked Security.

Got through a Gather with no damage and no one getting to the Little Sister.

Installed the third upgrade to a weapon.

Maxed out one Research Track.

Defeated 3 Big Daddies without dying during the fight.

Joined forces with Sinclair in Ryan Amusements.

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.

Achieve 1000 headshots