Preparing the dot…
Find the vanishing point.
Start a set. Watch the dot fade, then tap the area or the button when it is gone.
Watch. Wait. Tap.
A small test of timing.
Aim for disappearance
Start a set, wait through a brief get-ready moment, then watch the dot fade steadily. Tap anywhere in the play area or press the response button at the moment the dot is gone. The invisible dot stays tappable for 1.5 seconds afterward, so a slightly late response still counts.
On a keyboard, Tab to the controls. Enter or Space works on either response control. Timing is taken when you press, rather than when you release.
Compare five trials
Your result shows how many milliseconds early or late you were. The average uses the size of each error, so early and late responses do not cancel each other out. Only a complete set with five responses can become a personal best.
Slow, Classic, and Quick each keep their own best average. Fade durations vary slightly within each speed. After a trial, choose Next trial when you are ready; there is no automatic next round.
Keep the view steady
Pause, scrolling away, changing the layout, or leaving the page stops the current trial without scoring it. Restart that trial when you return. Completed trials in the current set stay until you start a new set.
Personal bests and the five most recent completed sets save in this browser when storage is available. Unfinished sets do not survive a reload. Brightness, screens, and input devices affect how fading looks; use the game for practice and personal comparisons.
Rock Paper Scissors
Asteroids