About the Game Boy Color
The Game Boy Color launched in Japan on 21 October 1998 — a colour display upgrade to the nine-year-old Game Boy that kept Nintendo's entire handheld library alive. Its Sharp SM83 CPU could run at double speed, its TFT screen displayed 32,768 colours with up to 56 on screen simultaneously, and every original Game Boy cartridge still worked. Developed in just ten months to beat SNK's WonderSwan to market, the Game Boy Color was less a new machine than a promise kept: the games you already owned, now in colour. Pokémon Gold and Silver — released in Japan in November 1999 — sold 23 million copies and became the best-selling games on the platform. The Game Boy Color sold alongside the Game Boy Advance from 2001 until 2003.
Historical Context
By 1997, Nintendo faced a dilemma. The original Game Boy — launched in 1989 — was ageing, and Gunpei Yokoi, its creator, had left Nintendo in 1996 following the failed Virtual Boy. Satoru Okada, who had worked alongside Yokoi in Nintendo R&D1 and had argued for the original Game Boy's third-party-first design philosophy, now led the portable hardware division. The team had been developing a powerful new handheld codenamed "Project Atlantis" — a 32-bit colour device — but Nintendo ordered them to build something simpler, faster, and cheaper instead. The reason was competitive urgency: SNK was preparing to launch the WonderSwan, designed by Yokoi himself, in March 1999. The directive was clear — build a colour Game Boy, maintain the existing library, and reach shelves before the WonderSwan. The result was developed in approximately ten months. When the Game Boy Color launched in October 1998, it carried with it the weight of hundreds of millions of existing Game Boy cartridges already in players' hands — a library no new entrant could match.
Form & Feel
The Game Boy Color is slightly larger than the Game Boy Pocket — its predecessor in the compact handheld line — but fits in a single hand with the same ease. The front face is dominated by the screen: a 2.32-inch TFT colour LCD, noticeably brighter and more vivid than the original Game Boy's monochrome display. The D-pad, A and B buttons, Select and Start are identically placed to the original Game Boy, a deliberate continuity that let returning players pick up the device without relearning. At the top of the unit sits the infrared communications port — two discrete diodes (one for transmitting, one for receiving) allowing wireless line-of-sight data exchange with other Game Boy Colors at up to 2 metres. Nintendo launched the Game Boy Color in five initial colours: Grape (purple), Teal, Kiwi (yellow-green), Dandelion (yellow), and Berry (red). The cartridge system used three formats: original grey Game Boy cartridges (backward-compatible), dual-compatible black cartridges (would play on both Game Boy and Game Boy Color), and clear/transparent GBC-exclusive cartridges that would not run on older hardware. This colour-coded tray system told players at a glance what would play where — a rare example of industrial design communicating a technical compatibility matrix without a manual.
The World It Was Born Into
The late 1990s was the era of colour — and Game Boy was the last major holdout. The Sega Game Gear (1990) and Atari Lynx (1989) had offered colour handheld gaming years earlier, but both had failed against Game Boy's combination of library, battery life, and price. By 1997, the handheld market was a Nintendo monopoly, and the primary challenge was not competition but irrelevance — the rising PlayStation culture belonged to home consoles and teenagers, not pocket games and children. SNK's Neo Geo Pocket — launching in Japan in October 1998, the same week as the Game Boy Color — attempted to bring its arcade fighting pedigree to the handheld space. It arrived monochrome and was immediately overshadowed by the colourful Game Boy Color. Bandai's WonderSwan, designed by Gunpei Yokoi for launch in March 1999, offered a smaller single-AA-battery device that positioned itself as more adult and more affordable. At its peak, the WonderSwan captured roughly 8% of the Japanese handheld market — a meaningful dent, not a challenge. The Game Boy Color's ultimate insurance was its software library. When Pokémon Gold and Silver launched in Japan in November 1999 and sold 1.6 million copies in the first three days, the debate about handheld market leadership was over.
How It Was Built — and Why
The Game Boy Color's processor is the Sharp SM83 — the same CPU that powered the original Game Boy, but with a critical upgrade: a "double-speed mode" that ran the chip at 8.388608 MHz instead of the standard 4.194304 MHz. Games targeting the Game Boy Color could request double speed via a hardware register write; games not making the request ran at standard speed, maintaining backward compatibility. The display is a 160×144 pixel TFT LCD capable of displaying 32,768 distinct colours, with hardware support for 56 simultaneous colours on screen. For original Game Boy games — which had no colour data — the Game Boy Color's bootstrap ROM included colour palettes for over 90 specific titles, applying pre-mapped colours based on the cartridge's game code. For unrecognised titles, players could choose from 12 system palettes at startup by holding button combinations; one palette replicated the original four-shade green monochrome. RAM was quadrupled from 8 KB (original Game Boy) to 32 KB, plus an additional 16 KB of video RAM. The infrared port was implemented as two separate diodes — a 940 nm infrared LED transmitter and a phototransistor receiver — capable of sending data at approximately 262 kbit/s with a range of up to 2 metres at close to 180° viewing angle. The battery requirement was two AA cells providing approximately 10 hours of play — similar to the original Game Boy and far superior to the Sega Game Gear's 6 AA cells and 3–4 hours.
The Belief Behind the Machine
"The games you already love — now in colour."
Nintendo made a choice in 1998 that contradicted every instinct of a technology company: they built a machine that was deliberately less powerful than what they could build, because protecting what already existed mattered more than anything new. The Game Boy Color was not the cutting-edge handheld the R&D team had been developing. It was a precise, calculated compromise — every design decision weighed against the question: will this run the games already in players' hands? Backward compatibility was not a feature; it was the foundation. This decision had a paradox at its heart. By refusing to break with the past, Nintendo made the Game Boy Color stronger than any fully new platform could have been at launch. The 100 million Game Boy cartridges already sold became the Game Boy Color's software library on day one. Pokémon Red and Blue — the games that had made Game Boy culturally dominant — worked perfectly, now with colour palettes applied automatically. And when Pokémon Gold and Silver arrived in November 1999 as the first proper colour Pokémon games — running only on Game Boy Color and Game Boy Advance — they demonstrated that the old commitment and new ambition could coexist. The Game Boy Color was the machine that taught Nintendo a lesson they would apply again and again: the size of the installed base is not a limitation to be overcome. It is the most powerful competitive moat in the industry.
The Sounds and Images of an Era
The Game Boy Color defined what portable gaming looked like at the turn of the millennium. These videos capture the console as it was — on television, at launch, in the shops.
Game Boy Color CM
Coming soon — the shop owner's personal note on this console. Taisei Shimizu has shipped Game Boy Color 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 Color
Pokémon Gold Version / Silver Version
ポケットモンスター 金・銀
Pokémon Gold and Silver are the definitive Game Boy Color games — the titles that proved the platfor…
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The Legend of Zelda: Oracle of Seasons
ゼルダの伝説 ふしぎの木の実 大地の章
The Legend of Zelda: Oracle of Seasons is one of two interconnected Game Boy Color adventures releas…
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Dragon Warrior Monsters
ドラゴンクエストモンスターズ テリーのワンダーランド
Dragon Warrior Monsters — known in Japan as Dragon Quest Monsters: Terry's Wonderland — is a monster…
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Pokémon Crystal Version
ポケットモンスター クリスタルバージョン
Pokémon Crystal is the third and final entry in the second generation of the Pokémon series — an enh…
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Shantae
シャンティ
Shantae is the game that proved the Game Boy Color still had undiscovered depths three years into it…
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