From the Super Mario Wiki
“That's Bozzo... He's a local village boy who's full of energy... He's curious, and often finds himself in all sorts of strange mishaps... He's Watchitt's grandson, so maybe he'll be mayor too, someday...”
Bozzo is the grandson of Watchitt living in Yold Town during Super Paper Mario. This little boy is full of energy and is always curious. He often finds himself in sorts of mishaps. Tippi says that because he is Watchitt's grandson, Bozzo may become mayor someday.