World 3 (Super Mario Galaxy 2)

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“Wow! An entirely new world! Looks like the path splits up ahead. Hey, don't look at me! The captain makes the choices, am I right?”

—Lubba, Super Mario Galaxy 2

World 3: The Far Reaches of the Universe is a world traveled to in Super Mario Galaxy 2. It is located near a green nebula. Like the other worlds, there are seven galaxies in World 3, including a boss galaxy, Bowser Jr.'s Fearsome Fleet. Here, Bowser Jr. launches a second attack on Mario, this time with his giant robot Megahammer.