US models: SCPH-10010U/97026) included with PlayStation 2's launch is almost identical externally as the previous DualShock analog controller, with a few minor cosmetic changes. It has different screw positioning and one fewer screw. A blue DualShock 2 logo was added to the top of the controller, the connector is more square than the DualShock, and both the cable and connector are black rather than grey. The standard controller is black (other colors came later), rather than grey as with the original DualShock. The analog sticks are also noticeably stiffer than on the original DualShock. Internally, the DualShock 2 was lighter and all of the buttons (except for the Analog mode, start, select, L3 and R3 buttons) were readable as analog values (pressure-sensitive). The DualShock 2 can sense 256 levels of pressure. The DualShock 2 has been made available in various colors: black, satin silver, ceramic white, slate grey, clear, ocean blue, emerald green, crimson red, lemon yellow, and candy pink. Some coin operated arcade cabinets also had connections that allowed the user to use DualShock or DualShock 2 controllers. The notable ones are Namco's Tekken 5 and Konami's Winning Eleven Arcade Championship 2012. The original PlayStation is forward compatible with the DualShock 2. The PlayStation 3 is backward compatible with the DualShock and DualShock 2 by the use of third party peripherals, which connect the controller to the console via a USB port. However, the DualShock and DualShock 2 will not work properly with games that require Sixaxis functionality, such as Heavy Rain. DualShock 3 Announced at the 2007 Tokyo Game Show, the DualShock 3 wireless controller (SCPH-98050/CECHZC2) is a gamepad for the PlayStation 3. It replaces the Sixaxis wireless controller originally released with earlier versions of the console. The DualShock 3 is nearly identical to the previous Sixaxis version but adds the haptic feedback capabilities found in the DualShock and DualShock 2. Sony settled a patent infringement lawsuit with Immersion in March 2007 following a lengthy legal battle. The settlement cleared the way for incorporating the missing "rumble" feature that the Sixaxis lacked. Both the vibration function and motion-sensing capabilities of the DualShock 3 can be used simultaneously without one interfering with the other. Like the Sixaxis, it also has a USB mini-B port for charging and can also be used on a PSP Go via Bluetooth, though the controller and the PSP Go must be registered using a