97 untouched Duck Hunt and Super Mario Bros. cartridges worth thousands discovered in retro shop storage room — never-before-seen version of popular NES games include five perfect 10 PSA items

August 1, 2026 - 17:50

A retro game store has stumbled upon what could be a once-in-a-decade discovery: dozens of sealed, untouched Nintendo Entertainment System cartridges, including rare copies of Duck Hunt and Super Mario Bros. that have never been opened. The find, tucked away in a dusty storage room, includes several items graded as perfect 10s by PSA, the leading authentication service. Collectors estimate the haul could be worth tens of thousands of dollars, with some individual cartridges fetching over $10,000 each.

The shop owner, who asked not to be named, said the boxes were hidden behind old furniture and had likely sat there since the late 1980s. "We thought it was just old stock, but when we looked closer, the shrink wrap was still intact," he explained. Among the items are five copies of Super Mario Bros. that received a flawless PSA 10 rating, meaning they are in mint condition with no wear, fading, or factory flaws. A sealed Duck Hunt cartridge, which usually sells for a few hundred dollars loose, is now expected to break records at auction.

What makes this find even more unusual is that many of these cartridges are from a specific production run that some collectors believe was only sold in small test markets. That version features a slightly different label and a different code on the back, details that were previously unknown to most enthusiasts. The shop plans to list the items through a major auction house later this spring, but already, private offers have come in. For now, the owner is keeping the collection under lock and key, saying he wants to give serious bidders a fair chance. For retro gaming fans, this is a reminder that treasures can still hide in plain sight, even in the most unassuming places.