The Power Glove was a controller accessory for the NES using motion control to work. Though an official product, Nintendo had no involvement with development and it was made by Mattel in North America and PAX in Japan.
How It Worked
Each game required a specific code in order to use the Power Glove to play the game. Before playing, gamers had to set up sensors on top of the television screen to track the Power Glove's movements.
Why it Flopped
The Power Glove was heavily criticized for its very difficult controls and, due to extremely poor sales, was a commercial failure, driving PAX to bankruptcy. The sensors were also very hard to put on.
Years after its failure, the Power Glove was often parodied in pop culture and is most famous for being wielded by Lucas Barton in The Wizard. His quote, "I love the Power Glove. It's so bad," is now an internet meme. The Angry Video Game Nerd had himself wear the glove on his hand and it has since been a staple in his character.