Customize: Pure JS 15-second animation

The prompt comes from a post by Scrappy. Watch the video

Make it yours

Everything is optional. Your details stay in this browser and carry over to the next prompt.

The highlighted part at the end is added from your details and dials. Where it disagrees with the prompt, it wins.

Create a cool 15s playable animation with pure js

For best results, run it with Claude Fable 5.5.