Big Bad Boss Galaxy

Big Bad Boss Galaxy is a galaxy in Super Mario Galaxy 3. This galaxy consists of battles with bosses from the previous installments.

Star 1: Attack Of The Pirahnas
Mario must face the Pirahna bosses Inferno Pirahna, Petey Pirahna, Dino Pirahna, Fiery Dino Pirahna, Peewee Pirahna, Spider Pirahna, and Draco Pirahna.

Secret Star 1: Bosses From The Past
Mario must face the bosses he faced during the years King Totomesu, Dragonzamasu, Hiyoihoi, Biokinton, Tatanga (SML), Kurosu, Tatanga (SML2), Ricky, Sabasa, 3 Little Pigheads, Pako, Wario, Waluigi, Boomer, Bull-E-Bill, Inferno Pirahna, Donkey Kong, Mouser, Tryclyde, Fryguy, Clawgrip, Mecha Birdo, Hawk Mouth, Wart, Big Bob-Omb, Whomp King, Goomboss, Big Boo, Big Mr. I, King Boo, Big Bully, Eyerok, Chill Bully, Chief Chilly, Wiggler (SM64), Polluted Pirahna Plant, Petey Pirahna, Gooper Blooper, Wiggler (SMS), Monty Mole (SMS), Mecha Bowser (SMS), Phantamanta, King Boo (SMS), Eely-Mouth, Puffer-Cheep, King Tut, Larry, Morton, Wendy, Iggy, Roy, Lemmy, Ludwig, Boom Boom, Pom Pom, Bowser Jr., and Bowser.

Star 4: The Ultimate Showdown
Mario must face Peewee Piranha, Topmaniac, Digga-Leg, Tarantox and Sorbetti in any order. Once Mario has defeated them all, a lauch star will appear sending him to the final planet wear he must face Dry Bowser in a battle similar to the fight with Bowser in the first game. If Mario defeats Dry Bowser, the power star will appear.

Speedy Comet (Red): The Ultimate Showdown Speed Run
Mario must beat "The Ultimate Showdown" in under 6 minutes.

Daredevil Comet (White): The Ultimate Showdown Daredevil Run
Mario must beat "The Ultimate Showdown" with 1 health bar without getting hit.

Green Comet (Green): Green Stars

 * Green Star 1
 * Green Star 2
 * Green Star 3
 * Green Star 4
 * Green Star 5
 * Green Star 6
 * Green Star 7
 * Green Star 8
 * Green Star 9
 * Green Star 10
 * Green Star 11
 * Green Star 12
 * Green Star 13
 * Green Star 14
 * Green Star 15

Bosses

 * Peewee Piranha
 * Topmaniac
 * Digga-Leg
 * Tarantox
 * Sorbetti
 * Dry Bowser