Pulse Lock

A moving needle. A narrowing window. Build a perfect chain before the signal slips away. Stop the orange needle inside the blue arc. Each new lock gets faster and tighter; late locks can shift the target while the needle moves. A caught lock earns 100–300 points based on how close you are to the center. Consecutive catches add a multiplier in steps of 0.2, up to ×2. A miss costs one life and resets the chain. Each lock allows 9 active seconds; a timeout counts as a miss. Play a UTC daily course or generate a fresh practice run. Share the course seed with friends and save a score card after your run.

Choose a daily course or a fresh practice course. Start the signal and watch the orange needle. Tap Lock now when the needle enters the blue arc. The middle third counts as a perfect lock. Complete twenty locks with three lives; late locks shift the target while it moves. Misses break your chain. Select Next lock when you are ready. Tap or click Lock now, or press Space when a form control is not focused. Enter or Space activates a focused button. Pause freezes the needle; switching tabs pauses automatically.