Reaction Time

Wait for the panel to turn green, then hit a key (or tap) as fast as you can. Five trials — jump early and the trial resets. Lower is better.

Trains: Reflex speed · Category: Reflex

How to play: Reaction Time is a free, browser-based brain-training game in the Brain Gym suite. Play it instantly — no sign-up, works offline, and your best scores are saved on your device.

Play Reaction Time · All Brain Gym games