The BIOHAZARD Dedicated Controller (バイオハザード専用コントローラ baiohazādo sen'yō kontorōra ) is a special-edition PlayStation controller that was released for BIOHAZARD 2 in Japan.
The left grip of the controller was designed to be shaped like the handle of a combat knife while the right was shaped like the handle of a Handgun. The handgun grip features a trigger button on the back that is meant to be used as the attack or fire button. The trigger served as a substitute for the Square button.
The button layout featured no actual shoulder buttons, instead placing equivalents for them all on the front-center of the controller. There are two R1 buttons—one in the center and one on the right. The one on the right-hand side is meant to be held down to aim so that the player can press the trigger to attack.
Though it is not shown on the Japanese packaging, the BIOHAZARD Dedicated Controller and its international counterpart both feature a "turbo" toggle that can switch repeated attack actions from a manual input to an automatic one.
The X or "Cross" button is labeled "DASH" on the Japanese controller and "RUN" internationally, as it was meant to be used for running. The Circle and Triangle buttons act as they would on a normal PlayStation controller, though the Circle button is placed opposite of where it would be normally. The controller features no analog sticks.
In spite of the fact that the BIOHAZARD Dedicated Controller lacks analog sticks, it can be used with the Dualshock Versions of Resident Evil: Director's Cut and Resident Evil 2, as those versions still allow the player to control the characters using the directional buttons.
Furthermore, while the controller was intended to be used with the first two Resident Evil games it can be used with several other Resident Evil titles on PlayStation and PlayStation 2 including Resident Evil 3: Nemesis and Resident Evil Code: Veronica X. Spin-off titles, such as Survivor, Dead Aim, Outbreak, and Outbreak File #2 can also be played using the controller as they also allow character movement with the directional buttons, but it is not an optimal control scheme given that the controller was intended to be used with games that retained the movement and shooting controls of the first two Resident Evil games. The same can be said about the PlayStation 2 version of Resident Evil 4, especially because of its aiming and attacking controls.
As a PlayStation controller, the BIOHAZARD Dedicated Controller can be used with other PlayStation titles, but not ones that require analog stick control.