Ultimate Ball Rigger is an add-on that automates the process of creating animation rigs for spherical models. By selecting one or more meshes, the tool generates a rig scaled precisely to the dimensions of the active model. The resulting setup features an adjustable squash and stretch system that allows animators to alter the direction of the deformation, accommodating bouncing movements across three-dimensional space. Additionally, the generated rig includes standard animation controllers for the root, center of gravity, rotation, and isolated top and bottom squash and stretch points.