A short game that quietly measures how quickly — and how consistently — your brain responds. No leaderboards. Just an honest snapshot of your reflexes today.
Calibrate first for a fairer reading. A 10-second test that measures your device's input lag — so your reaction-time score reflects your brain, not your hardware.
Takes about 90 seconds · Works with keyboard or touch
The screen will be red. Stay calm and just watch.
Press SPACE (or tap the screen) as fast as you possibly can.
If you tap too early, that trial restarts — you can't cheat the system by mashing the key.
You'll do 7 short trials. Between each trial you'll see your last reaction time. Tap to continue when you're ready.
How fast your brain turns "see it" into "do it" — your raw response time.
How steady your reactions are from trial to trial — a signal of focus.
Whether you can hold back — patience matters as much as speed.