Hidden Message
Search for the coordinates X700, Y490 on the Cryptographic Sequencer to intercept a radio frequency that contains the following repeating numbers: 9, 23, 9, 12, 12, 18, 5, 20, 21, 18, 14, 2, 1, 20, 13, 1, 14. The message is decoded as 'I WILL RETURN BATMAN'.
More tricks, tips and cheats for this game are right here - Batman: Arkham City cheats
Comments for this cheat