Nintendo Cereal System

Nintendo Cereal System was a breakfast cereal produced by Ralston Cereals in 1988 and was discontinued in 1989. It is named after the Nintendo Entertainment System, and promoted both Super Mario Bros. and The Legend of Zelda. The cereal box has two vertical bags inside, dividing into halves; the left half is "Super Mario Bros. Action Series" and the right half is "Zelda Adventure Series".

The "Super Mario Bros. Action Series" has fruity-flavored Marios, Mushrooms, Goombas, Koopa Troopas, and King Koopas. The "Zelda Adventure Series" has berry-flavored Links, Hearts, Boomerangs, Keys, and Shields.

Included in every box of Nintendo Cereal System was a sticker of a Nintendo character, and the back of every box had a set of twelve trading cards called "Nintendo Power Cards". The boxes also had offers to win a Nintendo Entertainment System Power Set or a Super Mario Bros.-themed.

Trivia

 * In The Super Mario Bros. Super Show! live-action segment "Bats in the Basement", a box of Nintendo Cereal System can be seen as Mario and Luigi discuss their new roommate, Count Zoltan Dracula, over breakfast.
 * Ralston was also responsible for the Donkey Kong and Donkey Kong Jr. branded breakfast cereals.