A speed test where you click when the signal appears.
Click the panel when it turns green.
Reaction Time Test measures how quickly you respond to a visual signal. To play, wait for the screen to change color, then click as fast as possible. If you click too soon, the attempt is counted as early. Repeat several rounds and compare your times to see your average. This game is useful for practicing focus, timing, and quick decision making.
Many players score between 200 and 300 ms and practice can improve that.
That happens when you click before the green signal appears on screen.
Yes. Use Try again and compare your results across many attempts.