World 3 (Super Mario Galaxy 2)
World 3: The Far Reaches of the Universe is a world traveled to in Super Mario Galaxy 2. World 3 is an area that contains a green nebula and many green comets and stars. 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.
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