About the Game Boy
The original Game Boy launched in Japan on April 21, 1989, and reached North America on July 31, 1989. Designed by Gunpei Yokoi and Satoru Okada under Nintendo's R&D1 division, it was a monochrome handheld with a green-tinted LCD, four AA batteries, and a price point that competitors could not match. Its rivals — the Sega Game Gear, Atari Lynx, and NEC TurboExpress — had colour screens and faster hardware. The Game Boy had none of that. It had thirty hours of battery life, a Link Cable for multiplayer, and Tetris. That was enough.
Historical Context
By the late 1980s, handheld gaming had been modest in ambition — LCD games, Game & Watch, devices with fixed graphics and limited input. The Game Boy changed the definition of what a handheld could be: it was a full programmable computer in a pocket, running the same cartridge software model as home consoles. Its competitors were technically superior on paper. Sega's Game Gear launched in Japan in 1990 with a backlit colour screen and superior hardware. Atari's Lynx — released in North America in 1989 — had colour graphics and a fast processor. NEC's TurboExpress (PC Engine GT in Japan, 1990) could run the same HuCard games as the PC Engine home console. Yet all three collapsed against the Game Boy. The market told the answer clearly: in a handheld, battery life and a library of great games matter more than technical specifications.
Form & Feel
The Game Boy — model number DMG-01, named after its internal codename "Dot Matrix Game" — is a vertical handheld: 90 mm wide, 148 mm tall, 32 mm deep, weighing 390 grams with batteries. Its body is a single-piece off-white plastic shell with a dark grey directional pad on the left and two circular action buttons (A and B) on the right. Start and Select sit centrally below the screen. The screen is a reflective monochrome LCD, 47 mm diagonal, displaying 160 × 144 pixels at four shades of grey-green — the characteristic greenish tint that is inseparable from the Game Boy's visual identity. A 3.5 mm headphone jack sits on the base, alongside the external link port that connects two Game Boys with a cable. Four AA batteries in the rear compartment power the unit. On the right side, a single speaker grille. There is no backlight — the screen is designed to be read in daylight or under a lamp. This was not an oversight; it was the engineering choice that enabled the battery life that no competitor could match.
The World It Was Born Into
In 1989, the handheld gaming market was about to be redefined. The Game Boy arrived the same year as the Atari Lynx — a machine with a backlit colour screen, stereo sound, and a fast processor that put it ahead of the Game Boy on every hardware metric. The Sega Game Gear followed in 1990 with colour graphics and the ability to use a TV-tuner accessory. NEC's TurboExpress (1990) was technically the most powerful: it ran PC Engine cartridges natively, offering console-quality graphics in a handheld. Nintendo's entry looked humble by comparison. Yet by 1991, the Game Boy had outsold all three combined. The Game Gear drained six AA batteries in three to five hours. The TurboExpress required six batteries for barely three hours. The Lynx consumed six batteries in a similar span. The Game Boy ran four AA batteries for up to thirty hours. Children could play through a long-haul flight, a road trip, a school holiday — without their parents scrambling for batteries. The Game Boy's defining victory was not hardware. It was the shape of the problem it solved.
How It Was Built — and Why
The Game Boy's processor is the Sharp LR35902 — a custom 8-bit hybrid chip running at 4.19 MHz, combining elements of the Intel 8080 and the Zilog Z80 architectures. It is paired with 8 KB of work RAM and a separate video RAM. The LCD is a reflective STN (Super-Twisted Nematic) panel with no backlight, which is the single most significant engineering decision in the device's history: it eliminated backlight power consumption entirely, extending battery life to fifteen to thirty hours on four AA batteries — three to ten times longer than any colour handheld competitor. The cartridge bus is 8-bit, allowing game cartridges to range from 256 KB in early titles to 8 MB in late-era releases using bank-switching. The Link Cable port on the base uses a simple serial communication protocol at 8 Kbit/s (or up to 512 Kbit/s in fast mode), enabling two-player Tetris battles and, later, Pokémon trading. This communication infrastructure — designed in 1989 — became the foundation for one of the most important social mechanics in gaming history: the Pokémon trade. Without the Game Boy Link Cable, the core loop of collecting and trading 151 species would not have been possible.
The Belief Behind the Machine
"Hardware should serve play — not display its own capabilities."
Gunpei Yokoi called his guiding principle "lateral thinking with withered technology" — kareta gijutsu no suiheiteki shikō. The concept is precise: take technologies that are already mature, already cheap, already well-understood, and find new ways to apply them. Do not chase the cutting edge. The cutting edge is expensive, power-hungry, and unreliable. The Game Boy's monochrome display was not new technology in 1989 — Sharp had been producing similar LCD panels for calculators for years. The 8-bit processor was not new. The Game Boy's innovation was not in any individual component, but in the combination and the purpose: all of it assembled toward a single goal, playing games anywhere, for as long as you want, without needing to be near a power outlet. Yokoi had applied the same philosophy to the Game & Watch a decade earlier — using calculator LCD technology for handheld games. The Game Boy was its fullest expression. Every design choice derived from that goal: no backlight (battery life), monochrome display (battery life, cost), simple processor (battery life, cost, heat), four AA batteries rather than six (smaller form factor). Yokoi's belief was that hardware should serve play, not display its own capabilities. A machine that runs out of batteries in three hours, however powerful, is a machine that has failed at its primary job.
The Sounds and Images of an Era
The Game Boy defined an era of portable play. These videos capture the machine as it was — in pockets, on playgrounds, on long journeys.
Console CM
Game Commercials 1989-1990
US Launch CM — Tetris
Coming soon — the shop owner's personal note on this console. Taisei Shimizu has shipped Game Boy units to collectors around the world. His note will appear here.
Games in the Museum
Each entry includes a shop owner's note, collector's guide, maintenance tips, and memory prompts — inviting players around the world to share their stories.
Game Boy
Tetris
テトリス
Tetris for Game Boy is a 1989 puzzle game developed by Nintendo R&D1, based on Alexey Pajitnov's ori…
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Pokémon Red and Green
ポケットモンスター 赤・緑
Pokémon Red and Green launched in Japan on February 27, 1996, after six years of development by Game…
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Super Mario Land
スーパーマリオランド
Super Mario Land is a 1989 platform game developed by Nintendo R&D1 and one of the four launch title…
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Kirby's Dream Land
星のカービィ
Kirby's Dream Land is a 1992 platform game developed by HAL Laboratory and published by Nintendo for…
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The Legend of Zelda: Link's Awakening
ゼルダの伝説 夢をみる島
The Legend of Zelda: Link's Awakening (1993) is a top-down action-adventure for the original Game Bo…
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