Here is the full list of all 19 Urban Legends achievements.
Get the files from the morgue
Get the Music Box
Finished the Game
Finished the Game for Real
Survived the first fight
Got to the elevator safely
Burned Jeff
Found all Tarot Cards
Figured out the sequence of the Tarot Cards
Hid on the wrong closet
Finished the game without been seen by Jeff
Finish the game without looking to the notepad
Found all the VHS
Found all Urban Legends references
Found all the collectibles
Completed the underground puzzle in X seconds
Got all the Achievements!
Completed the detective board in PJ's room
Played the game between 11pm and 4am