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Reflex
4.8 / 5.0

Reaction Time Reflex Test

Test your human reaction speed in milliseconds when the color turns green!

51.9k Plays
All Games
Reflex Reaction Test
Tap as soon as the screen turns GREEN
Best
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Tap to Start

How to Play
1. Wait on Red: Tap to start and wait patiently while the screen is Red.
2. Tap on Green: The instant the screen turns Green, tap or click immediately!
3. Get Your MS Score: See your reaction time in milliseconds across 5 rounds.
Controls & Input
Mobile: Tap anywhere on the large colored screen area.
Desktop: Click anywhere on the screen with your mouse.
Local High Scores

Your highest personal best score is automatically saved locally in your browser so you can return anytime.

About Reaction Time Reflex Test

Measure your visual reaction time. Wait for the screen to turn from red to green, then tap as fast as humanly possible! Calculates your average reaction speed over 5 rounds and ranks your reflexes.

Key Features

Millisecond precision performance timer (`performance.now()`)
5-round average calculation
Early click penalty detection (Too soon!)
Reaction speed ranking tier (Pro Gamer, Fast, Average, Slow)
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