Cosmo the Seedrain

Cosmo is one of the main characters of Sonic the Hedgehog series. She is a female child of a plant-like alien species whose homeworld was destroyed by the villainous Metarex and she is the only surviving member of her species. She is an current ally of Sonic and his friends, as well as a love interest for Miles "Tails" Prower.

Cosmo made her debut return on Sonic Ultra Rush after events of Sonic Adventure 3. She was return to life after the recent sacrifice to save her friends from Dark Oak. During the loss of thier friend, she appears as a pure spirit hoping she will come back. She leads her friends to collect her fragments of the special cherry blossom petals that was kept hidden in the jar where it was safe by Cream the Rabbit. After Cosmo's fragments were collected, she was reborn, she finally return and joins Sonic and his friends.

Powers and Abilities
Cosmo does have a few abilities, being a plant herself, such as having the ability to empathize with plants, trees, or the planet and determine their state of life. Cosmo can jump high and gently float down with the aid of her skirt.

Cosmo has demonstrated some sort of agility as shown when Winner is about to kidnap Riker, Celestia and Tasha with a sack, she quickly rolled next to them letting herself get captured along with those three and later on when Cosmo get into a fight, she is able to avoid his attacks with speed. She also shows heavy endurance as she is able to recover from powerful attacks quickly. She is is able to read and decipher the languages. Also, she can unlock the power from the Rainbow Pearl during the party games.

Personality
Cosmo is a kind and gentle character, though she often feels guilt because she was unable to save anyone from her home planet ever since the destruction of the Metarex. She also seems to suffer from a low self-esteem issue, often calling herself "unworthy" or blaming herself for the hardships that she and her friends had to endure. Cosmo also dislikes violence, but acknowledges that fighting is sometimes a necessity, although she herself is unable to fight. Cosmo can be somewhat clumsy, but she is also quite resourceful; she also has a penchant of getting into trouble.