Cosmic Clone

Cosmic Clones are shadowy duplicates of Mario or Luigi that appear in Super Mario Galaxy 2. Cosmic Clones are created once a certain point is reached in a galaxy and will follow behind Mario or Luigi, performing every movement Mario makes. Once a certain task is met, such as collecting all five Star Chips, or find an object they will disappear. If Mario touches a clone, he will take damage. Boards usually warn the plumber that Cosmic Clones are present in the area. Cosmic Clones also are able to walk where there is no platform if it is necessary for following Mario.

The Cosmic Clones most likely replaced Cosmic Mario as Mario's cosmic entity.

Known Locations
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 * Sky Station Galaxy on a planet with Flip Switches.
 * Spin-Dig Galaxy - On the first planet of the second mission.
 * Fluffy Bluff Galaxy - They appear on the Pond Planet following Mario until he collects all five of the Star Chips.
 * Puzzle Plank Galaxy - In the shadow vault while Mario collects Purple Coins (seen above).
 * Cloudy Court Galaxy - On a planet with clouds and poisonous water and on the Prankster Comet mission in this galaxy.
 * Haunty Hills Galaxy - Appear during the Prankster Comet mission
 * Chompworks Galaxy - On the final planet of the first mission with golden Chain Chomp
 * Mario Squared Galaxy - On the final planet.