Super Mario Bros WATA 6.0 B Nintendo Factory Sealed NES Holy Grail Black Box. For sale in this listing is Super Mario Bros WATA 6.0 B Factory Sealed.Released for Nintendo in 1987. THE holy grail of sealed NES games... And certainly in the running for most iconic video game of all time! This game is still factory sealed after more than 30 years! Please make sure to view our other listings this week for many other gold, silver, & bronze age comics. The item "Super Mario Bros WATA 6.0 B Nintendo Factory Sealed NES Holy Grail Black Box" is in sale since Sunday, April 4, 2021. This item is in the category "Video Games & Consoles\Video Games". The seller is "filter81" and is located in Bradenton, Florida. This item can be shipped worldwide.