PSA Authenticated 1998 Pokémon Red Prototype Draws $25,000 Bid at Goldin Auction
A development cartridge with a 16-megabit flash chip and two header errors sold to a single bidder as the auction nears its close.
By Olga Kaur ·
Goldin Auctions listed a 1998 Pokémon Red prototype for the Nintendo Game Boy on October 23, 2026. As of that date, one bidder had placed a bid of $25,000 on the item. The listing describes the hardware as a previously undocumented development board, a claim that draws attention to the specific components inside the plastic shell.
The cartridge’s rarity stems from its internal architecture. Physical inspection reveals a sticker labeled DMB-MBC-16M-FLASH and the part number DMG-(F)KGDB-01. Experts interpret the DMB prefix as a reference to Dot Matrix Game, the original internal codename for the Game Boy. The MBC designation stands for Memory Bank Controller, a chip that allowed games to exceed the console’s standard 32KB ROM limit. The 16M suffix indicates 16 megabits of flash-writable memory. Retro Dodo noted that the physical unit is longer than a standard Game Boy cartridge.
PSA specialists authenticated the item but could not read the entire data set. They successfully read the first 32KB, a result the grading company termed technically unique. For the readable section, PSA stated the game data is completely identical to the U.S. retail version. The company expressed confidence that the unreadable remainder matches the retail release as well. However, the report identified two specific errors in the ROM header data.
The first discrepancy occurs at offset 0x014C, which denotes the Mask ROM version. The value is incorrectly set to 55 instead of 00. This error changes the calculated header checksum at offset 0x014D, which reads CB rather than the expected 20. Neither difference affects the gameplay experience. The auction page notes that a similar development cartridge with the same part number appeared on the Rare Gaming Dump wiki, though that 2000-era unit bore a slightly different sticker reading DMG-MBC3-16M-FLASH.
Pokémon Red launched in 1998 alongside Green and Blue, establishing the franchise that has since sold millions of copies. Red and Blue combined are reported to have sold more than 31 million units. The current listing offers collectors a tangible piece of that development history, verified by a major grading service despite the header quirks.
Several days remain before the auction closes. The current holder of the $25,000 bid may win the piece, though the final price could increase before bidding ends. A reader comment on the original report suggested this copy might be a master unit that functions normally, a claim that remains unverified by the auction house or PSA.
The item sits at the intersection of video game history and collector markets, where technical specifications like flash memory capacity and header checksums determine value for serious buyers. The Goldin listing provides close-up images of the board design, allowing bidders to compare the hardware against known development units from the era.
Source: Tom's Hardware
