Which Arkham Asylum gadget lets Batman override security panels?

The Cryptographic Sequencer lets Batman override security panels in Arkham Asylum.

Batman uses the handheld device to crack electronic locks and bypass security systems throughout the island. Players tune its signal by adjusting frequencies until the correct pattern is found, opening doors and disabling systems that block access to new areas.

The gadget is primarily an exploration and progression tool rather than a conventional weapon. It can unlock routes, disable certain asylum functions, and later be upgraded to work over longer distances. Security panels often mark the boundary between an accessible area and one that requires Batman’s expanding equipment set.

The Cryptographic Sequencer is commonly mixed up with the Batclaw or Line Launcher because all three help Batman reach new locations. Their roles differ: the Batclaw grabs objects or enemies, the Line Launcher crosses horizontal gaps, and the Sequencer defeats electronic security. Its name reflects cryptography—the practice of encoding and decoding information.