|~ Cosmic Mario's laugh in the Super Mario Galaxy games and 3D Land|
Super Mario Galaxy
Depending on which plumber is present, they will have a Cosmic Clone race, in which Cosmic Mario/Luigi vows to take the Star before the real one.
In the levels of Cosmic Clones, Cosmic Clone Mario multiplies into an army of Cosmic Clones and follows Mario or Luigi depending of the player choice.
Super Mario 3D LandThe Cosmic Clone returns, following the player until the end of the level, as well as in Bowser's Castle. He laughs manically, has the appearance of a small Mario without a cap and can copy the player's movement.
Cosmic Mario is similiar to Shadow Mario from Super Mario Sunshine, both of them are the dark forms of the protagonists and copy their moves.