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 vending machine

The player has performed at least one successful hack

You have completed the story.

You beat a friend at pool.

You completed the mission "I'll Take Her".

You completed the mission "Museum Piece".

You flew under all the main bridges in the game.

You unlocked the special ability of buying guns from Little Jacob.

You have taken all variations of the helicopter tours of Liberty City.

You unlocked all the islands.

You survived a 6 star wanted level for a full 5 minutes.