1. Start2. Wait for green3. Click fast
Click the large panel once to start. When it turns green, click again as fast as you can.
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Eesky Brain games are for entertainment and practice. They are not medical, psychological, or clinical assessments. Device latency and display refresh rate can affect results.
Game notes
About this reaction time test
A short reflex game where the rule is simple: wait for green, then react fast.
What you are testing
This game measures the time between a visual signal and your click or tap. It is a simple reflex challenge, not a medical or esports ranking system.
Why scores vary
Display refresh rate, mouse or touch latency, browser load, and attention all affect the number. Compare your own attempts on the same device for the fairest practice.
How to use it
Play several attempts, watch your session average, and try to lower your local best. The result is stored only in your browser.
How to Play
- 1 Start the test
Click or tap the reaction pad to begin. The pad will change color while you wait for the signal.
- 2 Wait for the signal
Hold steady and watch for the green "React now" signal. Don't click too early or it counts as "Too soon."
- 3 React as fast as you can
When you see the green signal, click or tap immediately. Your reaction time is measured in milliseconds.
- 4 Track your progress
Your session stats and local best are saved automatically. Try to beat your personal record.
Frequently Asked Questions
What is a good reaction time?
Average human reaction time to a visual stimulus is around 200-250 ms. Competitive gamers often score under 200 ms. Results vary by device, age, and alertness.
Does my device affect the score?
Yes. Display refresh rate, input latency, and touch response time can affect results. For the most consistent results, use the same device each time.
Is this a medical test?
No. Eesky Brain games are for entertainment and practice only. They are not medical, psychological, or clinical assessments.
Are my scores saved?
Your local best score is saved in your browser storage. No account is needed. Clearing browser data will reset your saved score.
Can I share my results?
Yes. Click the share button to copy your best score to the clipboard for sharing.