ReflexOn is a fun game to test your reflex. You will be presented with smiley icons and you can test your reflex by clicking on as many as possible. You can test your reflex at various speeds and also optionally choose 'Extreme Reflex' which will present you with frowning and smiling icons randomly. The game will give you feedback at regular intervals and the aim is to get the 'You're the best!' message.