Completed "Not of This World"

Uncovered the secret of Dionysus Park.

Defeated the Preacher.

Spent 2000 dollars at Vending Machines.

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

Defended yourself against the Big Sister without dying.

Hacked one of each kind of machine.

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

Found your way back into the ruins of Rapture.

Cover Kratos in 500 buckets of blood by killing the enemies

Sever Gaia’s hand

Discover the secret 'Hades Arm' room

Acquire the Bow of Apollo