One signal
Mix-up
Reset
Tap to start
or press Space
▲ High
tap or ↑ key
▼ Low
tap or ↓ key
Last
–
Single avg
–
Mix-up avg
–
Misses
0
Wait for the cue, then answer as fast as you can. Pressing before it appears counts as a guess.
Bars: real startup frames (sources below). Line: your last reaction, incl. screen lag. Averages: last 5 tries.