World 1

World One is always the first world in a Mario game. It is usually easy, and put there to help the player learn how to play to the game. Various World Ones include:


 * 25m - Was World One In Donkey Kong.
 * World 1 (SMB) - Was World One In Super Mario Bros..
 * World 1 (The Lost Levels) - Was World One In Super Mario Bros.: The Lost Levels.
 * World 1 (SMB2) - Was World One In Super Mario Bros. 2 .
 * Grass Land - Was World One In Super Mario Bros. 3 .
 * Yoshi's Island - Was World One In Super Mario World.
 * World 1 (YI) - Was World One In Super Mario World 2: Yoshi's Island.
 * World 1 (YIDS) - Was World One In Yoshi's Island DS.
 * Birabuto Kingdom - Was World One In Super Mario Land.
 * Tree Zone - Was World One In Super Mario Land 2: 6 Golden Coins.
 * Rice Beach - Was World One In Wario Land: Super Mario Land 3.
 * World 1 (NSMB) - Was World One In New Super Mario Bros.
 * Ladida Plains - Was World 1 In Super Princess Peach.
 * Mario Toy Company - Was World One In Mario vs. Donkey Kong.
 * Mushroom Mayhem - Was World 1 In Mario vs. Donkey Kong 2: March of the Minis.