Gridlock is a game where you can test your speed when you control a computer mouse. There are many different rooms where you can test your skills.
You have to follow the green line with your mouse as fast as you can, when you leave the green zone you will get a message.
Are you the fastest?
When you beat your personal time the game will submit and you can see how you are doing against the rest of the world.
You can see the rankings here
You can download the latest version: