Super Mario Galaxy is a platformer game released in November 2007 for the Nintendo Wii. It is considered to be one of the best video games of all time and has a sequel titled Super Mario Galaxy 2. During the Star Festival, Bowser's forces attack and capture Princess Peach and her castle, with plans of universal domination. Mario fails to rescue her and is sent falling to another planet where he meets Rosalina and the Lumas. Bowser has actually stolen the Power Stars from their home, the Comet Observatory, for his own use. Now gifted with the power to travel through space, Mario sets out to retrieve the Power Stars so that the Comet Observatory can reach the center of the universe where Bowser lies.
In the game are Hungry Lumas, a type of Luma that will ask to be fed a certain number of Star Bits. Doing this makes them transform into planets and galaxies.
A Luma named Lumalee usually appears before boss battles. In exchange for 30 Star Bits, she will turn into either a Life Mushroom or a 1-Up Mushroom for Mario.
There is also the Lumacomète, who will move around Prankster Comets for 20 Star Bits.