Reaction Time
Wait for green, then tap — fast.
About Reaction Time
Reaction Time is a pure reflex test from MOJGAMES. The panel sits red and tells you to wait — then, after a random delay, it flashes green. Tap the instant it does: the faster your reaction in milliseconds, the more points you bank that round. But hold your nerve — tap while it is still red and you score nothing for that round. After five rounds your points are tallied into a score you can chase. A typical human reaction is around 250 milliseconds, so see how close to the edge you can get. Free, instant, and a perfect quick-session brain warm-up on phone or desktop.
Frequently asked questions
How do I play Reaction Time?+
Watch the panel. When it flips from red to green, tap anywhere as quickly as you can. Your reaction in milliseconds decides your points for that round.
What happens if I tap too soon?+
If you tap while the panel is still red, that round scores zero — so wait for the green before you tap.
What is a good reaction time?+
Most people land around 250 milliseconds. Under 200ms is very fast. The lower your time, the higher your score.
Is Reaction Time free and mobile-friendly?+
Yes — it is free with no download or sign-up, and you just tap the screen, so it works on touch and mouse.