Points of reference: br 00:30 - Riddler trophy br 00:58 - Easter egg (secret hidden room) br 04:19 - Interview tape br 04:29 - "Is the generosity of our benefactors on the Wayne?" br 04:50 - Arkham chronicle br 05:33 - Riddler trophy br 06:22 - Arkham chronicle br 07:34 - Riddler trophy br 08:30 - The last missing Joker teeth br 08:42 - Riddler trophy br 10:06 - "Are you going to take your hat off to Harley, Bats?" br 10:51 - Riddler trophy br 11:29 - Interview tape br 13:13 - Interview tape br 16:48 - Arkham chronicle br 17:57 - Deactivating the gas br 18:24 - Riddler trophy (and tracing Riddler's location) br 18:58 - "Prometheus, Arkham guards' most wanted and most hated.