In this gameplay walkthrough of LEGO Batman: Legacy of the Dark Knight for IGN, we show you how to get through the Arkham Asylum section of Chapter Five.00:00 - Intro00:05 - An old friend reveals herself01:50 - Investigate the docks03:38 - Go to Amusement Mile05:14 - Find the missing pieces of the door 1/306:30 - Find the missing pieces of the door 2/307:57 - Find the missing pieces of the door 3/309:15 - Put the pieces back in place and solve the puzzle10:09 - The mastermind is revealed11:46 - Go to the GCPD on North Island13:03 - Arkham Asylum18:21 - Interrogate the Joker22:31 - Defeat the enemies33:21 - OutroFor more help on Lego Batman: Legacy of the Dark Knight, check out all of our guides at https://www.ign.com/wikis/lego-batman-legacy-of-the-dark-knight