Clone Comet

A Clone Comet (also known as a Cosmic Clone Comet) is a variant of Prankster Comet debuting in Super Mario Galaxy 2. They cause a Galaxy infected with their influence to generate Cosmic Clones, hence their name. Mario must complete a mission as the Cosmic Clones appear on his tail and relentlessly hunt their target down. Clone Comets derive their theme from a remix of the Cosmic Comet theme, which also comes from Shadow Mario's boss theme in Super Mario Sunshine.

Galaxies

 * Cloudy Court Galaxy (The Shadow Lining; Mario must navigate his way through the Galaxy as Cosmic Clones chase him. Based on Mission 1: Head In The Clouds.)
 * Haunty Halls Galaxy (Spooky Cosmic Clone Chase; Mario must navigate the Creepy Corridor as Cosmic Clones come in hot on his tail. The ghosts have been removed to make the mission easier than if they appeared. Based on Mission 2: Sneaking Down The Creepy Corridor.)
 * Chompworks Galaxy (Cosmic Clones in the Chompworks; Mario must guide the Golden Chomp to the hole at the end of the planet as Cosmic Clones interrupt his work. Once the Golden Chomp reaches his home, the Cosmic Clones will die. Based off Mission 1: Where The Chomps Are Made Of Gold.)
 * Flip-Out Galaxy (Cosmic Clone Wall Jumpers; Mario must use his Wall Jump skill to reach the Power Star as Cosmic Clones chase him. There is a Green Power Star in this level. Based off Mission 1: Wicked Wall Jumps.)