The Game Handler was a one-handed motion controller released in 1991.  It was the brain child of Dane Galden, who started the idea back in 1988.  The controller unfortunately never got enough market coverage to become a success. Nevertheless, Mr. Galden surely was ahead of his time, and his visions are now seen flourishing in the modern era.  Includes both a prototype as well as released controller.  The seller states the white shell in the pic is not for sale (another prototype likely).  Interesting piece of gaming history right here! Game Handler CES Prototype w/Brochure
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