experiences (in terms of control, at least) compared to the standard single controller option. The controller initially came in six colors (grey, black, red, green, yellow and blue) but other colors were released later, many of them coinciding with the release of a similarly colored or designed system. Some of these others include smoke black, watermelon red, jungle green, fire orange, ice blue, grape purple, and special edition colors like gold, atomic purple, extreme green, "Donkey Kong 64" banana bunch yellow, "Pokémon" blue and yellow, and "Millennium 2000" platinum. Players would often take apart Nintendo 64 controllers to mix-and-match the tops and bottoms of the shell, creating bi-color controllers. When the Nintendo 64 is switched on, the joystick on each controller is automatically calibrated by recording the current position as the center position. That works assuming the hands are off the joystick when the Nintendo 64 is powered on. The joystick can also be recalibrated while the Nintendo 64 is on, by pressing L+R+START to indicate that the current position of the joystick is the center position. Analog stick The Nintendo 64 controller was one of the first game controllers to incorporate analog stick technology as a main feature, intended to provide the user with a wider range of functions such as mobility and camera control. The stick is designed to detect 360 independent directions, compared to the 8 independent directions detected by a D-pad, allowing the potential for Nintendo 64 games to more accurately emulate 360° of motion. Analog joysticks prior to the Nintendo 64 include those used by the Atari 5200, Sega's arcade systems, Sega's analog Mission Stick for the Saturn (1995), and Sony's PlayStation Analog Joystick (1996). The Nintendo 64 controller distinguished itself from these precursors by using an analog thumbstick, which was predated only by the Mega Drive's XE-1 AP, designed by third-party manufacturer Dempa in 1989. The Nintendo 64 controller was released contemporaneously with Sega's 3D Pad for their Saturn system, and was followed during the fifth generation of video game consoles by Sony's Dual Analog and DualShock controllers for the PlayStation console. The analog stick uses a pair of optical encoding disks to determine its position, similar to how ball mice work. Since optical encoding disks only give the system relative changes in the position of the analog stick, the system assumes that the stick is centered during power-on and tracks relative movements from