closer to the center on both sides. Sony's PlayStation-series analog controllers—the Dual Analog Controller, DualShock, DualShock 2, Sixaxis, DualShock 3, DualShock 4 and DualSense—all use this configuration, with the remainder of the controller layout closely resembling the original digital PlayStation controller. The Classic Controller for the Wii also uses this configuration. The original configuration of the Wii U GamePad controller had twin analog "Circle Pads" positioned symmetrically above the D-pad and face buttons, but was reconfigured to have twin clickable analog sticks several months ahead of the system's planned launch. This setup also carried over to the Wii U Pro Controller. With genres such as action, adventure games, platforming, and shooting, the left stick normally controls the character's movement while the second stick controls the camera. The use of a second analog stick alleviated problems in many earlier platform games, in which the camera was notorious for bad positioning. The right stick not only allows for camera control in third-person games, but is almost essential for most modern first-person shooters such as Halo, where it controls the player's gaze and aim, as opposed to the left stick, which controls where the player moves. In Namco's Katamari Damacy and its sequels, both analog sticks are used at once to control the player's character. In spite of widespread adoption of dual analog sticks, a few modern video game systems are designed without a second analog stick, namely the Wii's standard controller (whose lone analog stick is implemented in the Wii Remote's Nunchuk attachment), Sony's PSP and Nintendo's 3DS. While the Wii's abovementioned supplemental Classic Controller accessory and its initial backwards compatibility support of the GameCube controller allow for dual-stick control schemes in certain games, the PSP's complete lack of a second analog stick and later the 3DS' initial lack of such feature have been criticized. Nintendo has since released an add-on for the 3DS that adds, among other things, a second analog "circle pad". The follow-up to the PSP, the PlayStation Vita, features dual analog sticks. It is the first handheld game console to do so. The New Nintendo 3DS line of systems added a second analog controller, known as the "C-Stick" to the right side of the device. Neutral position and drifting To operate properly, an analog stick must establish a neutral position, a special, unique position which the stick must maintain that the controller would interpret as an intentional cessation