Super Mario Advance

One night, Mario had a mysterious dream. He dreamed he was climbing a long stairway that led up and up to a closed door. When he reached the top and opened the door, he found himself gazing out at a world he had never seen, stretching out to the horizon. Then he heard a voice say, “This is Subcon, the land of dreams. The evil toad, Wart, has used his magic to lay a curse upon the land. Please defeat Wart and free us from his spell. Oh - and remember that Wart hates vegetables. Hurry! We need your help!” And then a bolt of lightning suddenly split the sky, and Mario woke up to find himself on the floor. He had fallen out of bed!

A few days later, Mario and his friends hiked to some nearby mountains for a picnic. Upon reaching their picnic spot, they looked around and found a small cave. When they entered the cave, they were amazed to discover the land Mario had seen in his dream stretching out before them.