Rare Nintendo cartridges found in storage could be worth millionsA box of Nintendo games found in Waukesha, Wisconsin could be worth millions. A box of Nintendo games found in Waukesha, Wisconsin could be worth millions. A box of Nintendo games found in Waukesha, Wisconsin could be worth millions. A box of Nintendo games found in Waukesha, Wisconsin could be worth millions. (WLS) -- A box of Nintendo games found in Waukesha, Wisconsin could be worth millions.