Inspired by watching somebody messing around with a pocket calculator, Gunpei Yokoi’s Game & Watch devices became some of Nintendo’s first and most influential gaming systems.
Look at Donkey Kong with its ‘D-Pad’ cross-control to move Mario around with your left thumb and a button on the right to make him jump.
Look familiar? Look at pretty much any console or handheld controller made since. And look at the dual screen clamshell design of Game & Watch Donkey Kong and wonder where the idea for the DS came from.
Everything old is new again!