Blackout Sonar

Spend three recharging pings to mark intruders. Expanding rings reveal nearby threats; the core turret only targets marked enemies in range. Runners, heavies and thirty-second surges escalate pressure. The prepared prompt specifies a self-contained HTML file with original procedural visuals, responsive controls, gesture-unlocked optional Web Audio, pause/resume, restart and safe local storage. No buyer fields are required: paste the fixed game specification as supplied. Reference implementation