“It stayed in the bottom of my office desk this whole time since the day I bought it,” said the unidentified seller in the release. “I never thought anything about it.”
It is also one of the earliest copies of the game to be shrink wrapped instead of having a sticker seal, according to the auction company.
This particular version of the game first went on sale in 1986, but Nintendo changed the packaging in early 1987, so only a relatively small number were sold.
“Since the production window for this copy and others like it was so short, finding another copy from this same production run in similar condition would be akin to looking for single drop of water in an ocean,” said Valarie McLeckie, video games director for Heritage Auctions. “Never say never, but there’s a good chance it can’t be done.”
The $660,000 price includes the buyer’s premium and shatters the previous record for a copy of Super Mario Bros. game.