Rika Monster Rig

Full Creature Rig, Jujutsu Kaisen

MayaCreature RiggingSkin WeightingIK/FKFan Project
Full control rig in A-pose. Color-coded NURBS controllers, left in red, right in blue, spine and tail in yellow.

Full control rig in A-pose. Color-coded NURBS controllers, left in red, right in blue, spine and tail in yellow.

Torso & Tail Controls

Hands & Arm Controls

IK/FK Switching

Jaw & Clavicle Controls

Overview

A full creature rig for Rika, the cursed spirit from Jujutsu Kaisen. I grabbed the model from Sketchfab and did the whole rig myself. She is not a clean biped, so the oversized jaw, long clawed arms, and bulky asymmetric body meant I placed joints and painted weights per region instead of mirroring one side. It has IK/FK arms, a jaw and gaze setup, and an outliner I kept organized as I went.

Structure & IK/FK

Geometry, joints, and controls in clean top-level groups

Geometry, joints, and controls in clean top-level groups

Each arm splits into FK, IK, and hand sub-groups

Each arm splits into FK, IK, and hand sub-groups

Arm FKIK switch

Arm FKIK switch

Tools & Credits

Autodesk MayaConstraintsSkin WeightingIK/FK Setup

Base model from Sketchfab. Rigging, controls, deformation, and facial setup done by me. Personal fan project. Jujutsu Kaisen and Rika are property of Gege Akutami and Shueisha.