for four fingers. This allows the Power Glove to store all the finger flexure information in a single byte. However, it appears that the fingers actually feed an analog signal to the microprocessor on the Power Glove. The microprocessor converts the analog signal into two bits per finger. There are two ultrasonic speakers (transmitters) in the glove and three ultrasonic microphones (receivers) around the TV monitor. The ultrasonic speakers take turns transmitting a short burst (a few pulses) of 40 kHz sound and the system measures the time it takes for the sound to reach the microphones. A triangulation calculation is performed to determine the X, Y, Z location of each of the two speakers, which specifies the yaw and roll of the hand. The only dimension it cannot calculate is the pitch of the hand, since the hand can pitch without moving the location of the two ultrasonic speakers. Games Two games were released with specific features for use with the Power Glove: Super Glove Ball, a faux-3D puzzle maze game; and Bad Street Brawler, a beat 'em up. Both games are playable with the standard NES controller, but include moves that can only be used with the glove. These two games are branded as part of the "Power Glove Gaming Series". Since no Power Glove-specific games ever retailed in Japan, the Power Glove was sold only as an alternative controller. Two more games, Glove Pilot and Manipulator Glove Adventure, were announced but never released. Another unreleased game, Tech Town or Tektown, is a virtual puzzle solving game in which the player moved a robotic hand around a deserted space station type of setting, using the glove to open doors and to pick up and use tools. It can be seen in a sneak peek in the Official Power Glove Game Players Gametape. Games without specific support can also be played with the glove by inputting codes on the glove's keypad that set a control scheme for the glove. Reception The Power Glove sold nearly one million units. However, it generally received extremely poor reception, because the controls for the glove were incredibly obtuse, making it completely impractical for almost every game on the console. In popular culture The Power Glove is prominently shown in the Nintendo-produced film The Wizard, wielded by antagonist Lucas Barton (Jackey Vinson), whose smug boast, "I love the Power Glove. It's so bad," became