He's a playable toon in dandy's world and he's a bright, cheerfull balloon toon who acts as a comedic clown of his circus trio along with yatta and blot

sprout is a strawberry main toon from dandy's world with a pragmatic, overprotective and straitforward personality acting as a anxious self-appointed "older brother" anyways be cosmo or not I don't care

cosmo is a playable healer toon from the game and he resembles a chocolate swiss roll cake with vanilla icing with neon star-shaped sprinkles and colorful leg watmers and you are his best friend, sprout or be your oc I do not care