Dome

The Domes are rooms in Super Mario Galaxy located in the Comet Observatory. These are where Mario can transport himself to other galaxies. After Mario collects Power Stars, more galaxies appear. The Terrace, Fountain and Kitchen have two main galaxies, two bonus galaxies and one boss battle galaxy. The Bedroom and Engine Room have three main galaxies, one bonus galaxy and one boss battle galaxy. The Garden has three main galaxies and one bonus galaxy. The final galaxy of each Dome is a boss battle against either Bowser or Bowser Jr. culminating in the acquisition of a Grand Star. Additionally, once a few Power Stars from the Dome are collected, a Hungry Luma will appear, providing a portal to another galaxy near the Dome.