This is a late-edition FC version of Super Mario Bros. with the F mark. It was obtained from a collector who collects unopened Famicom software. Although it was purchased new and unopened at the time, it has passed through someone else's hands, so it is being sold as a new, unused item. Super Mario Bros. celebrated its 40th anniversary in 2025! (*'∇')/゜ It's a monumental masterpiece loved worldwide from the Showa era to the present Reiwa era! The FC version of Super Mario Bros. shipped 6.81 million copies, but this item has no deterioration of the outer box due to aging and is very clean. Super Mario Bros. in this condition is very rare nowadays, so it's worth keeping as a collection. If you are a fan of the Super Mario series or a collector, how about taking this opportunity?