Baron Brrr
Baron Brr is a boss in Super Mario Galaxy. Mario fights him at FreezeFlame Galaxy, in the "ice" part, obviously. He sort of resembles a cross between the Crystal King and Chief Chilly.
Outlook
Baron Brr is found at the top of a mountain in the cold part of Freezeflame Galaxy. He floats above a "column" of sorts surrounded by water, which a few platforms are floating in. He shoots icy balls out of himself and all over the arena like some sort of volcanoes.
Combat
Mario must go to the side of the column Brr is on. There, he will find an Ice Flower and will use it to turn into Ice Mario. He'll then be able to cross the water around the column and be able to go to the front of it, where there are two walls for him to walljump from and onto the top of the column. Once there, Brr will try and knock Mario off with shockwaves by smashing the ground. Mario must use the Star Spin on him, revealing his true form, which is basically a smaller version of him. The miniature Baron Brr will hop around until Mario Star Spins him again, doing damage. Mario must then do this two more times. After the second time, two Icy Bits will come to help Brr. After the third time, Brr will shatter and Mario will get the Power Star he had.
