Found 100 audio diaries.

Hacked 30 machines at a distance with the Hack Tool.

Killed an enemy with its own projectile.

Exceed 998 km/h or more for the first time

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

Confronted Lamb's lieutenant in Pauper's Drop.

Defeated 3 Big Daddies without dying during the fight.

Installed the third upgrade to a weapon.

Defended yourself against the Big Sister without dying.

Hacked one of each kind of machine.

Adopted a new Little Sister for the very first time.

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

Used the Hack Tool to hack an object at a distance.