Who designed the Game Boy, and what was his rule?
The Game Boy came out of Nintendo's R&D1 division under Gunpei Yokoi, who joined Nintendo as a maintenance engineer in the 1960s and moved into product development after company president Hiroshi Yamauchi saw a toy he had built in his spare time.
Yokoi worked to a rule he called lateral thinking with withered technology: take components that are mature, cheap and thoroughly understood, then find a use nobody else has thought of. Cutting-edge parts were expensive, unreliable in volume and hard to design around. Old parts were none of those things.
The Game & Watch handhelds of the 1980s came from that rule, built on the calculator screens that Sharp and Casio were producing by the million. The Game Boy was the next step: the same cheap-parts logic, but with swappable cartridges, so one machine could hold a whole library.
Yokoi left Nintendo in 1996, after the commercial failure of the Virtual Boy, and founded his own engineering firm, Koto Laboratory. He died on October 4, 1997 at the age of 56, after a crash on the Hokuriku Expressway in Japan.
Why did Nintendo ship a gray screen when color was possible?
Color screens existed in 1989 and Nintendo could have used one. Yokoi refused. "The technology was there to do color," he told Yukihito Morikawa in a 1997 interview translated by Shmuplations. "But I wanted us to do black and white anyway."
His argument was that players fill in whatever is missing. "If you draw two circles on a blackboard, and say 'that's a snowman,' everyone who sees it will sense the white color of the snow," he said in the same interview.
The engineering case was blunter. The monochrome dot-matrix screen and the custom 8-bit Sharp LR35902 processor, clocked at 4.19 MHz, drew so little power that four AA batteries ran for more than 30 hours. Nintendo priced the machine at $89.95 in the United States.
The competition proved the point. The Sega Game Gear, launched in 1990 with a backlit color screen, drained six AA batteries in three to five hours and sold about 10 million units. The Atari Lynx, technically the strongest of the three, sold roughly 3 million.
How did Tetris end up in the box?
Nintendo launched the Game Boy in Japan on April 21, 1989 and shipped about 300,000 units, which sold out inside two weeks. That bundle had no Tetris in it: the Game Boy version was not finished, and it reached Japan in June 1989.
The American bundle did have it. Henk Rogers, who had chased the tangled Tetris rights as far as Moscow, pushed Minoru Arakawa of Nintendo of America to leave Mario out of the box. "If you want little boys to buy your Game Boy, pack in Mario," Rogers recalled telling him, in a 2018 interview with Nintendo Life. "But if you want everyone to buy your Game Boy, pack in Tetris."
Nintendo packed in Tetris. The handheld reached the United States on July 31, 1989 at $89.95 with the puzzle game included, and that pairing sold the machine to commuters, parents and office workers who had never bought a game console in their lives.
The Game Boy version of Tetris went on to sell more than 35 million copies, more than any other game released for the system.
Why did Pokemon revive a seven-year-old handheld?
By 1995 the Game Boy looked finished. Home consoles had moved to 16-bit graphics, Nintendo was building the Nintendo 64, and the gray brick was six years old. The Game Boy Pocket, a smaller revision with a sharper screen, arrived in 1996 and kept the machine on shelves without changing the story.
What changed it was Pokemon Red and Green, released in Japan on February 27, 1996 for hardware most of the industry had written off. The two games sold 1.04 million copies in Japan during 1996 and another 3.65 million in 1997, the year Pokemon became the country's best-selling game and beat Final Fantasy VII.
Pokemon Red and Blue reached North America in September 1998 and did the same thing to a market that had moved on. Hardware sales followed the software, and a nine-year-old handheld turned hard to find again. Pokemon Red, Green and Blue together passed 31 million copies, second only to Tetris on the platform.
What replaced the Game Boy after 2001?
The Game Boy Color arrived in 1998 and ran every original cartridge. The real successor was the Game Boy Advance, released in Japan on March 21, 2001 and in the United States on June 11, 2001 at $99.99, with a 32-bit processor and backward compatibility with both earlier systems.
Nintendo ended production of the original Game Boy and the Game Boy Color in March 2003, shortly after the Game Boy Advance SP finally added the backlight the line had done without since 1989. The Game Boy Advance family sold 81.51 million units through the end of 2009, including 43.57 million Game Boy Advance SP units and 2.42 million of the Game Boy Micro.
The Nintendo DS, launched on November 21, 2004, took the market. Nintendo discontinued the Game Boy Advance by the end of 2010 and has not put the Game Boy name on hardware since. Across 1989 to 2003 the Game Boy and Game Boy Color sold 118.69 million units: 32.47 million in Japan, 44.06 million in the Americas and 42.16 million elsewhere.
Who owns the Game Boy name in 2026?
Nintendo does, and it still uses the name. No Game Boy hardware has been manufactured since 2010, but the software is on sale again. The Game Boy library inside Nintendo Classics reached 43 titles in February 2026 and took on more in July 2026, and it is included with a Nintendo Switch Online membership at $19.99 a year. Game Boy Advance titles sit one tier up, inside the Expansion Pack at $49.99 a year.
That is the official answer in 2026: Nintendo sells the games, not the machine.
Where to find one today
A working original Game Boy runs roughly $40 to $70 in 2026, with boxed units and unusual colors well above that. Machines that age often need a cleaned battery contact or a new screen cable, so a tested unit is worth the premium. Refurbished consoles, replacement parts and flash carts are stocked at Stone Age Gamer, and our model-by-model guide covers what a used one costs in 2026.
Frequently Asked Questions
When did the Game Boy come out?
The Game Boy launched in Japan on April 21, 1989 and in the United States on July 31, 1989 at $89.95, bundled with Tetris. Nintendo ended production of the Game Boy and Game Boy Color in March 2003.
How many Game Boys were sold?
The Game Boy and Game Boy Color sold 118.69 million units worldwide between 1989 and 2003: 32.47 million in Japan, 44.06 million in the Americas and 42.16 million in other regions. The Game Boy Advance family added another 81.51 million units through the end of 2009.
Why was the Game Boy screen green?
Nintendo's Gunpei Yokoi chose a monochrome dot-matrix screen for the Game Boy in 1989 to protect battery life and hold the price at $89.95. Four AA batteries ran the Game Boy for more than 30 hours, while the backlit color Sega Game Gear drained six AA batteries in three to five hours.