Fully upgraded one Plasmid to the Level 3 version.

Uncovered the secret of Dionysus Park.

Defeated 3 Big Daddies without dying during the fight.

Hacked 30 machines at a distance with the Hack Tool.

Killed an enemy with its own projectile.

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

Researched a Splicer with the Research Camera.

Joined forces with Sinclair in Ryan Amusements.

Hacked one of each kind of machine.

Upgraded a weapon at a Power to the People Station.

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

The player has completed the game without harvesting any Little Sisters