Picture a kid in 1990 walking into a mall, seeing a line wrapped around a Sears or a Toys “R” Us, and finding out the prize at the end wasn’t a toy. It was a shot at competing in an event that no video game company had ever tried before, with a cartridge nobody could buy in stores. That cartridge is now the single most expensive piece of NES memorabilia on the planet, and the story of how it got that way says a lot about why grading exists in the first place.
The 1990 Nintendo World Championships kicked off March 8–11 in Dallas and toured 29 cities across the country before wrapping up at Universal Studios Hollywood that December. Nintendo wasn’t just running a tournament. It was building a marketing spectacle at the exact moment the NES was peaking in American living rooms, and it needed a game nobody had played before to make the competition fair.
So Nintendo built one. The competition cartridge crammed together customized versions of Super Mario Bros., Rad Racer, and Tetris into a single timed event: 6 minutes and 21 seconds to rack up the highest combined score across all three, using a scoring formula built specifically for the contest. Nobody had trained on this exact cartridge before stepping up to the console, which was the point. At each city stop, the top two scorers in each of three age brackets — under 11, 12 to 17, and 18 and up — became City Champions, banking $250, a trophy, and a paid trip to the finals.
Three kids walked away as national champions that December: Jeff Hansen, Thor Aackerlund, and Robert Whiteman, each in their own age division, each collecting a $10,000 savings bond, a Geo Metro convertible, a 40-inch rear-projection TV, and a gold Mario trophy. An informal tiebreaker afterward crowned Aackerlund the overall winner, a title that still gets him invited to retro gaming events three decades later.
Here’s where it gets interesting for anyone who cares about condition and rarity. The competition cartridges weren’t sold. They were made in a limited run for finalists and Nintendo staff — gray-cased, individually numbered, with the highest confirmed copy sitting at #353, though nobody has ever nailed down a definitive total. A second, rarer version exists too: a gold-cased cartridge that Nintendo Power handed out to about 26 winners of an unrelated reader poll contest, unconnected to the tournament itself. Of those 26 gold carts, collectors and historians have only tracked down 16 today. Nine are unaccounted for, and one was reportedly lost to a house fire.
That scarcity is exactly why the market has gone the way it has. A CGC-certified gold cartridge, graded a modest 4.0, sold at auction for $207,400 in August 2024 — the first time one had ever changed hands in a public sale rather than a private deal. It’s the kind of number that makes sense of the Nintendo World Championships cartridge’s reputation as the most valuable piece of NES-era memorabilia in existence, gray or gold.
It’s also a clean illustration of why third-party grading matters once numbers get that large. A cartridge this rare and this expensive isn’t something a buyer wants to take on faith. Authentication and condition grading turn “I found this in an attic” into a verifiable claim, which is the whole reason a market for six-figure cartridges can exist at all instead of collapsing under its own uncertainty. We covered some of the same dynamics in our ranking of the rarest NES cartridges ever made, where the NWC cart topped the list for good reason.
Nintendo never ran anything quite like it again on this scale until reviving the World Championships name decades later, long after the NES had become a museum piece. The 1990 tournament stayed a one-off oddity for years — the kind of thing that seems almost impossible now, a game company handing out custom hardware nobody could buy, then watching it become priceless because it never should have existed in the first place.