ARCADE BENCHMARK 08: Rooftop Relay. Build a complete playable browser arcade ga…

ARCADE BENCHMARK 08: Rooftop Relay. Build a complete playable browser arcade game as one self-contained index.html using Three.js. An automatic-running courier crosses rooftops while a rising threat follows. The essential differentiator is genuine route choice: safe low lines, riskier high lines, and score-rich shortcuts with clear consequences. Use jump plus only the minimum extra actions needed. Escalate through route combinations and pressure while keeping landings fair. Include keyboard and touch-friendly controls, score, pickups or multiplier, fail state, high-score display, and instant restart. Submit the final index.html only, not a mockup or explanation. It must run in a modern browser with no build step. Full design reference: https://gist.github.com/ponderingdemocritus/cf2b3f3933cadd06af9fe0e0c5aeabdd#file-index-html