The Power Glove was made by Mattel and is compatible for almost all games that were produced for the NES. In 1989 Mattel released it in America it was never released in Europe.
The NES can track motion in three space(finger positions). On top of the Power Glove there are a set of buttons witch can be very useful. It has two modes "hires" and "lores". In "hires" mode the glove reports the position in three space and the position of the fingers. In "lores" mode the Glove report the position of the x and y axis and the buttons.
Because it was never released in Europe except for some game contest and import stores I had to pay 400 francs for it (70 $ I think).
The special made games for The Power Glove are:
Super Glove Ball Manipulator Maze ball
Bad Street Brawler Glove Pilot