Welcome To Yoshi's Island

Welcome To Yoshi's Island is a level that can be played only once when a new game is started in Super Mario World 2: Yoshi's Island and its remake, Yoshi's Island: Super Mario Advance 3. It is mainly a tutorial in which Yoshi learns about Baby Mario, as well as using Expansion Block and collecting coins. The level is very basic and short with no collectibles, with only few Shy Guy enemies strolling around, making it easy enough for beginners. The level apparently takes place in World 0. In the GBA version, if a player gets a game over on this level and chooses to end, the file will say that the level is World 0. In the SNES version the player is given infinite lives for this level and thus cannot get a game over. This level is also called World 0 if the player pauses during the level, it says World 0 at the top, and at the bottom it says the level is World 0-0.

As this mini-level ends, Yoshi begins level 1-1, Make Eggs, Throw Eggs. The level is also used as the final section of Endless World of Yoshis, with the addition of Kamek attacking Yoshi every few seconds as in the first room of 6-8.

Trivia

 * The very start of the level resembles Yoshi's House from Super Mario World.
 * The color of the Yoshi played will be the current Yoshi the player is using on the most recently selected file.