Start Lights, free and nothing to download
Start Lights is a reflex test inspired by the start of a single-seater race. Five red lights come on one by one and, after a random wait, they all go out at once: that is your moment to tap. The game shows your reaction time in milliseconds, compares it with a pro driver's and keeps your best time and your average.
Tips and variations
- Watch the lights, not your finger: you react faster to what you are already looking at.
- Do not try to guess the moment. The wait changes every time and a jump start does not count.
- Do five attempts in a row: the average says more about your reflexes than a single time.