Nintendo Super Secrets cards

Nintendo Super Secrets was a set of tradings cards distributed by during a Super Nintendo Entertainment System giveaway in 1991. Customers had the chance to win a Super Nintendo from November 6, 1991 to January 14, 1992. Each card featured an image and short biography of a character (or group of characters) from Super Mario Bros. 3 and Super Mario World on the front. The back of the card contained video game tips for the aforementioned games, along with Super Mario Bros. and Super Mario Bros. 2.