The Decryptor is a gadget in Tools of Destruction. It is a hacking device that allows the user to move an electric spark pass through a circuit gate, and unlock the security device it was used on. This is used to deactivate energy shields or open doors. The electric spark is guided by the player either using the SIXAXIS wireless controller's tilt function or the analog stick.
In Challenge mode, the Decryptor puzzles are harder than in the first playthrough.