Customize: Self-folding origami kabuto helmet

Build a 3D origami animation. A flat square sheet must fold itself step by step into a recognizable origami figure, with each fold shown as an actual crease and rotation of the paper, then unfold back to flat and repeat. The figure it becomes and how the whole thing is presented are up to you.

Everything about the design is your decision: style, colors, mood, environment, camera, level of detail, and any extra touches. Do not ask me any questions, make every choice yourself and build the most impressive version you can in a single attempt.

Technical requirements: one single self-contained HTML file, no external models, images, sounds, or asset URLs of any kind (a JavaScript library from a CDN is fine). It must start running on its own the moment it loads, with no clicks needed, and run smoothly with no console errors.

For best results, run it with Claude Fable 5.1.