The Flip-Out Galaxy is a galaxy in the game Super Mario Galaxy 2.
Wicked Wall Jumps
Cosmic Clone Wall Jumpers
Green Star 1
Green Star 2
The Galaxy itself only has a couple of planets, each having certain spots that open up when Mario spins. Just like the red and blue panels that flip when Mario uses the Star Spin, these large thick panels go in and out of the walls when this attack is used. Many spots with spikes can be seen and can be very dangerous.
There are also many areas in which Mario must use wall-kicks and the Star Spin together because one wall is red and the other is blue. One other part involves about 5 different flat panels, each having a gap in between each other that is only filled with a tall wall that Mario can unleash by spinning. Each of these panels, however, is equipped with spikes that will come out in a couple seconds from each other; then retract.