The Four AA Batteries That Changed Everything

The Four AA Batteries That Changed Everything

A Game Boy from 1989 weighs only 220 grams, but what I feel when I hold one is the weight of everything Gunpei Yokoi decided not to include. He refused colour. He refused a backlight. He chose four AA batteries and fifteen hours of play instead. The Sharp LR35902 processor inside was already out of date the day the machine went on sale.

He said it plainly: "Entertainment is about using mature technology cleverly to surprise people. It's not about whether it's cutting-edge, but whether it surprises."

I don't repair these machines myself — I send them to someone who does — but I inspect every board before and after, and what strikes me every time is how little Yokoi needed. Four shades of green on an unlit screen. And one link port, added not because anyone had a use for it, but because it cost almost nothing and might lead somewhere interesting. That port is the reason two children could trade a Pokémon, and the reason Pokémon spread across the world.

The Game Gear had colour. The Atari Lynx had a backlight. Both are footnotes now. I think about that when I decide what to stock, what to fix, and when to stop. The instinct is always to add — another feature, another service, another line of explanation. Four AA batteries are a reminder that the better question is usually the opposite one: what can be taken away, and still surprise someone?

Every working Game Boy that leaves here carries that decision forward. Someone will hold it, press Start, and play for hours on batteries from any convenience store. Thirty-seven years later, Yokoi's withered technology still surprises.