CLASSIC ARCADE BENCHMARK 04: Whack Protocol. Build a complete playable browser arcade game as one self-contained index.html using Three.js. Reimagine whack-a-mole as a fast pattern-recognition and triage score attack. Provide a compact readable field with at least a 3-by-3 set of spawn locations, keyboard and touch play, score, local high score, fail state, and instant restart. The player must strike correct targets, spare protected targets, resolve at least one delayed or ordered target rule, and trigger a chain or jackpot target. Incorrect strikes must have a visible cost. Start with simple patterns then escalate through overlapping rules, timing, and spatial grouping rather than impossible reaction windows. Add a changing announced protocol or rule card every few waves and a limited recovery or focus tool so one error does not end the run. Theme, target design, arena form, palette, story, and audio are entirely open. No external asset pack. Submit final index.html only, not a mockup or explanation, with no build step.