JP: December 10, 2011 NA: February 7, 2012 EU: January 27, 2012 Circle Pad Pro XL JP: November 15, 2012 NA: April 19, 2013 EU: March 22, 2013
The Circle Pad Pro is an optional hardware addition for the Nintendo 3DS which, when attached, adds a second analog joystick and extra set of shoulder buttons. Not all 3DS games are compatible with the device. Games that do utilize the Circle Pad Pro generally use the additional analog stick for enhanced camera control.
The first game to support it was Monster Hunter 3G in Japan and Resident Evil: Revelations in Europe and North America. The Circle Pad Pro was released in Japan on December 10, 2011, January 27, 2012 in Europe, on February 2, 2012 in Australia, and in North America on February 7, 2012 and is not Region-locked. In North America it is only available through GameStop. A Circle Pad Pro was also made for the Nintendo 3DS XL called the Circle Pad Pro XL. With the New 3DS, the controls were just built into the system