A significant find of nearly 100 rare Nintendo cartridges, including iconic titles such as Super Mario Bros. and Duck Hunt, was made in a storage box in Waukesha, Wisconsin. Initially overlooked and almost sold for just $15 each, these cartridges are now believed to be worth millions, as collectors uncover the true value of these rare games. The discovery highlights the ongoing interest in vintage gaming memorabilia, with similar finds being reported in neighboring Illinois. This treasure trove of retro gaming history has sparked excitement and intrigue among collectors, raising questions about the origins and worth of these mysterious Nintendo cartridges.