World 3 (Super Mario Galaxy 2)

World 3: The Far Reaches of the Universe is a world traveled to in Super Mario Galaxy 2. 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 in his robot Megahammer.

Galaxies

• Tall Trunk Galaxy
• Cloudy Court Galaxy
• Haunty Halls Galaxy
• Freezy Flake Galaxy
• Rolling Masterpiece Galaxy
• Beat Block Galaxy
• Bowser Jr.'s Fearsome Fleet