Reaction Time

Reaction Time measures the delay between a visual signal and your response. Each round rewards patient attention before the color change and a decisive click once the target is ready.

Start a round and keep your pointer or finger ready without pressing the target.

Wait for the waiting panel to change into the go signal; the delay varies each time.

Respond once, review the measured milliseconds, then repeat to build a reliable average.

Use the primary mouse button or Space only after the panel displays the go signal. Keep the browser tab focused so keyboard input reaches the game.

Rest one thumb near the large target and tap it once when its color changes. Avoid covering the central signal while you wait.

A shorter valid response time is stronger. Early presses are false starts and do not count as fast reactions, so consistency matters more than guessing.

The random waiting interval prevents memorizing a rhythm. Fatigue, distraction, display latency, and repeated false starts make consistent low times harder.

Watch the whole colored area instead of trying to focus on a tiny point.

Relax your hand between attempts to avoid tension-driven early clicks.

Compare a group of rounds rather than judging your ability from one outlier.

Predicting the signal creates false starts and usually produces a worse session.

Moving the pointer after the signal adds travel time that the game includes in the result.