How to Play Lightning Reflex – Tips, Rules & Benefits

Complete guide to Lightning Reflex: step-by-step rules, pro tips, and the cognitive benefits of this free reflex game. No download needed.

How to Play

  1. Wait for the screen to flash green.
  2. Tap as fast as possible the instant you see green.
  3. Your reaction time is shown in milliseconds.
  4. Play multiple rounds to get a reliable average.

Pro Tips

Cognitive Benefits of Lightning Reflex

FAQ

What is a good reaction time?

Average is around 250ms. Under 200ms is excellent. World-class athletes hit 150ms. If you're at 300ms+, consistent daily training will improve it.

Does caffeine improve reaction time?

Moderate caffeine (100–200mg) can improve reaction time by 10–20ms, but tolerance builds quickly and excess caffeine increases errors.

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