How to play Gmail snakey within Gmail?

If you are lucky one and use English interface, you will see Google Lab menu in Google Gmail Settings.

 

Click on it and select Old Snakey Radio button and save settings. Do not forget to enable Keyboard Shortcut in Setting>General menu.

Now, simply press & button of your keyboard and play Old, lovely Snakey.

I tied a few time, but, as you see, I need a little more practice!