World 1, as seen on its map.

World 1, also known as World 1: The Great Space Journey Begins, is the first world in Super Mario Galaxy 2. It is located in between a blue sky filled with clouds. Mario's home planet, the Mushroom World, can be seen in the background. This world holds seven galaxies, with the last being Bowser Jr.'s Fiery Flotilla, where Mario encounters Bowser Jr. for the first time. Bowser Jr. summons Gobblegut to fight him. 




  • World 1 and World 2 share the same background music, however, once Mario collects 120 Power Stars, the music of this world becomes a quiet, slowed-down version of the Good Egg Galaxy's music in the prequel.    

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