The player has fully upgraded one weapon

The player has completed Sander Cohen's great masterpiece

The player has restored the forests of Arcadia

The player has successfully invented at least one item

The player has defeated Peach Wilkins

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

The player has defeated the crazed Dr. Steinman

The player has successfully hacked a security camera

The player has performed at least one successful hack

The player has successfully completed the Welcome To Rapture Level

Killed the Vault Boss

Discovered Eridian Promontory