Reaction Time Test
Can you beat a sloth or a peregrine falcon?
Press to startBest 0 ms
How to play
Tap the board, then wait for green. Press again as soon as it turns green. You can also use the space bar.
Animal ranking
Every one of your results is compared with a sloth, star-nosed mole, cheetah and peregrine falcon. A clean sub-200 ms run is genuinely quick.