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Reflex

Wait for green. Don’t get faked out.

Reflex is a free reaction-time party game. Everyone stares at the same light, it turns green at a random moment, and the fastest tap wins — but fake-outs cost a full second, so trust your eyes, not your ears.

How to play Reflex

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Red means wait

Every light starts red for a random stretch — could be one second, could be six. Everyone in the room is staring at the exact same light at the exact same moment.

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Green means TAP

The instant the screen goes green, tap anywhere (or hit space on a laptop). Your reaction time in milliseconds is your score for that light. Miss it entirely and you get the full 2000ms.

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Some lights lie

A yellow READY pulse or the word GO in RED means it is a fake-out — tapping on those is a false start and costs you a flat 1000ms. The fakes even make the same noise as the real thing, so trust your eyes, not your ears.

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Lowest total wins

The host picks 3, 5 or 7 lights. Add up your times across all of them — fastest total takes the round, and the single quickest tap of the match gets its own shout-out.

Game details

Players
216
Time
~4 min
Difficulty
Zero learning curve — pure nerve

Questions

Is Reflex free to play?

Yes. Every game on Game Night Derby is free to play in the browser, with no accounts, no downloads and no ads.

How many players can play Reflex?

2 to 16 players. A game takes about 4 minutes.

Do we need to download an app?

No. One person hosts from a phone or laptop, and everyone else scans the QR code or types the 4-letter room code into any browser.

Can we play remotely?

Yes. The room syncs over the internet, so friends can join from anywhere. Talk-heavy games are best with a voice call running alongside.

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