Flip Flopping in Flipsville

Flip Flopping in Flipsville is the first mission of Super Mario Galaxy 2's Flipsville Galaxy. It is viable for selection when the galaxy can be accessed itself.

Layout
Mario starts inside a cuboid, two-sided house. He needs to use the grates to change the gravity and make his way to the top. Once Mario gets there, there will be a Launch Star.

Using the Launch Star, Mario will land on a planet that resembles a house's outer region. His next objective is to make his way to the other side and then traverse the underside to find the way forward. However, there are Chain Chomps in his path. His next objective once the second Launch Star is used is to use the grates to pass through a field of spikes. The next Launch Star heads to the Starshroom, where Mario can spend some of his starbits at a Luma Shop that Lumalee has under her care. Once fed with 30 Star Bits, she will create the item and leave. The item can be a Life Mushroom or 1-UP (in this game a 1-UP Mushroom). Past that is a Launch Star that leads to Glamdozer's planet. Mario and Glamdozer square off once she is provoked. Once Glamdozer falls, Mario can get the power star.

Trivia

 * There is a fatal glitch that can happen if Mario backtracks upon using the Launch Star to make his way to the second planet. Using the launch star again will somehow fire Mario into deep space, killing him.