The Mario Bros., Princess Toadstool, and Toad protect the Mushroom Kingdom against the evil forces of Bowser and his seven Koopa Kids.

Mario, Luigi, Yoshi and Princess Toadstool are on Dinosaur Island foiling the plans of King Koopa and his Koopa kids.

A teenager from Earth, is brought to another universe known as Videoland to defeat the evil villainess, Mother Brain, as foretold in an Ancient Prophecy.