Hamma Jamma mentions his grandfather at the Glitz Pit. Unlike his father, Hamma Jamma looks up to his grandfather who was a strong fighter in his days. Hamma Jamma stated he has the hammer from his grandfather saying that it was passed down in the family to continue the tradition of fighting.
- Hamma Jamma mentions his grandfather was a Hammer Bro. from World 7-1 from the original Super Mario Bros.