Reaction Tests

Hello guys, I want a reaction test program or just a website i could use to get my eye hand co-ordination faster.
For example: Circles appearing in random places and to make them disappear i need to move my mouse onto it and click.
Answer #1
Try this one mate
http://www.topendsports.com/testing/reaction-timer.htm
Answer #2
I have, it isnt very good because i can just leave my mouse of the stop button and then click once it changes, i am looking for one that i need to move my mouse fast.
Answer #3
just play fast paced games, best way to get better at something is to do that something
Answer #4
Online gaming improves much but it takes time. And for what game you want to improve?