The player has broken Fontaine's mind control

The player has fully upgraded two weapons

The player has fully upgraded one weapon

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

The player has successfully hacked a safe

The player has successfully hacked a security bot

The player has successfully completed the Welcome To Rapture Level

Unlocked 1999 Mode.

Completed the Main Campaign on Easy difficulty or above.

In the Main Campaign, killed 20 enemies using allies brought in through a Tear.