Down below you can watch a mini-documentary where the YouTube channel “DidYouKnowGaming” has documented its search for a mythical accessory for the Nintendo Gameboy that was never released.

It is a gadget called “WorkBoy” which Nintendo showed at the big electronics fair CES in 1992. The idea behind WorkBoy was that it could be used to perform various types of computer-related tasks, which perhaps made it a kind of competitor to the so-called PDAs that were popular in the 80s and 90s.