Bully

The is a boy transformed into a monster due to the Dark World's magic in.

Biography
The Bully was transformed into a monster when he came in search of the Triforce with his friend, who was transformed into a ball-like creature.

Link finds him on top of Death Mountain where the Bully chases after his ball-friend. The ball constantly runs away from him, but the Bully follows him and kicks him like a soccer ball. When Link wishes on the Triforce for Ganon's evil to be undone, all of Agahnim's wrongdoings are undone as well. As a result, Bully is transported back to the Light World. During the end credits, the Bully can be seen chasing after his friend just outside of the Tower of Hera, both in their normal forms.