Reaction Time
Tap, click, or press Space as soon as the panel goes green.
Completed0 / 5
Personal best—
How to play Reaction Time
- Start a trial and wait for the green signal. React as soon as you see it.
- If you tap too early, retry that trial. In Decoy mode, ignore the amber flash.
- Complete five trials to see the median. Compare scores with your previous sessions on the same input type.
Keep your finger or cursor in place before the color changes. Your screen, browser, and input hardware all contribute to the measured time.
How is the result calculated?
The game sorts your five valid reaction times and reports the middle one. It saves separate best times for mouse, touch, pen, and keyboard.



