Defeated the Preacher.

Killed an enemy with its own projectile.

Hacked 30 machines at a distance with the Hack Tool.

Confronted Lamb's lieutenant in Pauper's Drop.

Researched a Splicer with the Research Camera.

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

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

Defended yourself against the Big Sister without dying.

Paid your respects to the founder of Rapture.

Upgraded a weapon at a Power to the People Station.

Achieved Rank 40.

Found your way back into the ruins of Rapture.

Achieved Rank 20.