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

Found your way back into the ruins of Rapture.

The player has defeated Atlas

Fully upgrade five weapons

The player has purchased every slot in one of the Plasmid or Tonic tracks

The player has defeated Andrew Ryan

The player has completed Sander Cohen's great masterpiece

The player has fully upgraded two weapons

The player has successfully invented at least one item

The player has acquired at least one weapon upgrade

The player has taken a Research Photo of the highest grade

The player has purchased one slot in any Plasmid or Tonic track