The Rock Battle Galaxy is a galaxy in the Wii game Super Mario Galaxy . The galaxy contains a multitude of floating platforms. In some cases the main part of the galaxy will fire at you. Many robots and Bob-ombs appear in the galaxy.
There is also an arena-like area of the galaxy where three Lumas are being held there. Also in that area there is a red spinning top. The top appears to serve as a boss considering boss-like music accompanies it.