A Big Bully is a large Bully that appears in the games Super Mario 64 and Super Mario 64 DS. Like their smaller counterparts, Big Bullies resembles large black spheres with yellow horns and green shoes. They resemble large Bob-ombs.
This is basically just a recolor of the Kirby papercraft, with horns added. But to be honest, this recolor looks more like a Big Bully then the original looked like Kirby 😉 Fairly easy model, just make sure that you curl the horns a bit before starting to assemble those.
Download here (unfortunatly no high-quality, but it’s a recolor after all)
By Poco Doco, info from Super Mario Wiki.