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Task brief
Build a playable Mario Kart-style 3D kart racer in the browser (Three.js, single page, no external assets). A colorful track with jumps, banked turns and boost pads; 5 AI rivals that actually race you; item boxes with banana peels, homing shells and mushroom boosts; drifting with sparks and a mini-turbo; lap counter, live positions and a finish podium. It should feel fast and chaotic the moment it loads.
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Build an interactive 3D browser sim of a Tesla Roadster made of jelly. Single HTML file; Three.js from a CDN is fine, no other external assets. Real soft-body feel: the body wobbles at speed, squishes on landings and jiggles when it hits walls. Drive with arrow keys or WASD, Space to jump, in a small arena with ramps and walls to bounce off. Glossy, translucent jelly look with good lighting. It should feel fun the moment it loads.