If you want to improve how fast you react, then this is the right app for you! It will help you see if you can beat your high score and you can see if you can reach the best time in the world (0.000 seconds).
If you want to improve how fast you react, then this is the right app for you! It will help you see if you can beat your high score and you can see if you can reach the best time in the world (0.000 seconds).