Off by ≤ 0.010s: godlike · ≤ 0.030s: pass · > 0.030s: fail. Your score is your win streak.
Perfect Second is a hard timing game with one rule: stop the clock at exactly 1.000 seconds. There's no visual cue to help — one millisecond off counts as a loss, making this one of the hardest precision games you can play free online.