Donny

Donny swimming with the other micro-dolphins

Donny is a micro-dolphin living in a pool of Koopa Kola inside Yoshi's stomach in Unjust Desserts. He is the first micro-dolphin that Mario meets while he is shrunk down and wandering inside Yoshi's belly. He is amused when Mario says that the dolphins live inside a dinosaur named Yoshi, and refuses to believe him. Donny also believes that cows do not exist and that the world is not round. However, he and the other micro-dolphins eventually help Mario cross the Koopa Kola lake.