, the signal will begin to stabilize and allow you to initiate the decoding sequence. If you are stuck on the Enigma Machine

In Batman: Arkham City , one of the more cryptic Riddler challenges involves intercepting and decoding a numerical broadcast. The clue appears during the “Fragile Alliance” side mission, where Batman must decode several hidden messages left by the Riddler.

Late in the main storyline of Batman: Arkham City , the player is tasked with disabling several propaganda towers set up by and TYGER . These towers are broadcasting Strange’s chilling psychological manipulation across the prison city. However, one specific tower—often referred to by the community as the "Musical Cipher Tower"—is different.