Tyke

Tyke is a sentient star character Princess Rosalina gives to Mario to assist him in Super Mario Galaxy. She asks Mario to save the Grand Star and then gives Tyke to him as an aid. Tyke is then absorbed into Mario, giving him the ability the do a Star Spin. The game's prologue shows Princess Peach holding Tyke when Bowser attacks with his airships. Mario is then given Tyke by Princess Rosalina when he awakens on the first planet in the Gateway Galaxy.

Tyke bears a resemblance to the Star Kids of Paper Mario, such as Twink. Whether or not he is a Star Kid is not yet known.