Skip to content
Reaction Time key art

Reaction Time

Wait for green. Then go.

  • Action
  • 1 player
  • 1 min
  • Keyboard
  • Mouse
  • Touch
  • Gamepad
Play nowHow to play

Five red lights come on one by one, then go out after a random hold. React the moment they go out. Go early, or faster than 100 ms, and it is a jump start: that start is void and rerun. Your average over five clean starts is your time.

Start-gantry tension

Five red lights, a random hold, then lights out.

Honest timing

Timed from the frame the lights change, with early starts caught.

Your reaction profile

See every start, your average and your consistency.

Quick ReflexesReflex

Gameplay

  • reaction time gameplay, moment 1
  • reaction time gameplay, moment 2
  • reaction time gameplay, moment 3

How to play

Keyboard and gamepad

SpaceEnterClick
React
Esc
Pause

Touch

Tap anywhere
React

Your records

No records yet

Play a round and your best average and stats will show up here. They are saved in this browser.

Play Reaction Time

Achievements0/4

  • Quick DrawAverage under 250 ms.Locked
  • LightningAverage under 200 ms.Locked
  • MetronomeFive starts within 40 ms of each other.Locked
  • PatientFinish a set with no jump starts.Locked

If you like Reaction Time