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Reflex · Play now

Reaction Test

Wait for green. How fast can you react?

LET'S PLAY

Preparing the game.

Click to start. Wait for green, then click as quickly as possible. Complete 5 valid trials. Clicking early retries only that trial; earlier results are kept. Valid responses are 100–10,000ms.

Records and nicknames are public. Bests belong to this browser; clearing cookies or changing devices creates a separate player.

HOW TO PLAY

Reaction Test Play guide

Wait for green. How fast can you react?

How to play

  1. Click to start. Wait for green, then click as quickly as possible. Complete 5 valid trials. Clicking early retries only that trial; earlier results are kept. Valid responses are 100–10,000ms.

Scores and ranking

The rounded average of 5 trials is your score. Lower is better. Old single-trial records are excluded. Weekly and all-time TOP 20 use personal bests. Weeks reset Monday 00:00 Korea time (UTC+9).

Tips

Plan the next move before acting. Use the same device when comparing your records.

No installation or registration. Nicknames and records are public. Browser cookies identify players; clearing them or changing devices creates a new player.