REACTION // 05.00

ALTERNATE

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LAST—
AVERAGE—
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Start the game, wait while the arena says hold, then react when it says tap now.

REACTION BUDGET

Make five seconds last.

0.00 / 5.00s
QUICKRUN OVER

How it works: waiting is free. Only your reaction times use the five-second budget.

WAIT. SWITCH. REACT.

Patience first. Speed second.

Each correct hit adds only your reaction time to the five-second budget. The random wait between signals does not count—but one early click ends the run. Alternate between restraint and speed to set a personal best.

About the game

How to play Alternate

React to each colour switch and stretch a five-second time budget through a fast sequence of accurate responses.

Format
Five-second reaction run
Typical round
Under 1 minute
Cost
Free, with no download required

The rules

Wait for the state to switch, respond immediately, and repeat. Correct reactions preserve the run; hesitation consumes the shared clock.

What makes it different

Alternate replaces a conventional submitted score with an immediate personal run, keeping the ending quick and replayable.

HOW TO PLAY

Five seconds. Spend them wisely.

  1. 01
    Start, then hold

    The arena pauses for a random moment. Clicking now is a false start.

  2. 02
    React to the switch

    When the colour flips and TAP NOW appears, click or press Space.

  3. 03
    Protect the budget

    Only reaction time counts toward five seconds. Faster hits mean a longer run.

  4. 04
    Chase your record

    The run ends at five seconds or on a false start. Records stay on this device.
⚡
RUN COMPLETE

Sharp reactions.

HITS LANDED0
—AVERAGE
—FASTEST
—RANK

No account. No score submission. Your records stay in this browser.

 PERSONAL RECORDS

Your reaction file.

0RUNS
0BEST SCORE
—FASTEST HIT
—BEST AVERAGE