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This article explains how to use the Decrypter. There are two ways to use the Decryptor. If a SIXAXIS wireless controller is used, the player can control the metal ball by tilting the controller, if not (or if changed in the options) the player instead uses the left joystick by default controls. The idea is to get the spark through all of the circuit gates, which are basically breaks in the circuit, so that it can reach the main gate, and unlock the locked door. simply place the metal ball between the next break in the circuit in order to move the spark past the break, so that it can continue it's journey. The spark can be guided on to the wrong circuit part, making the attempt fail as the spark cannot change directions, unless there is another break in the circuit to bring it back on to the correct route.
- Ratchet & Clank Future: Tools of Destruction (first appearance)