For people complaining over not being able to mute, you can mute the game in the options. if you drag the sound all the way to the left side (and i mean all the way) you can turn it off.
If you shut the browser down and start again after the whole game screen have moved to the right-down corner and more then half the game are being lost.
 "There is no game"){kind=icon}
 "Pixelo"){kind=icon}
 "Monster Corp"){kind=icon}
 "Hack Slash Crawl"){kind=icon}
 "Epic Combo!"){kind=icon}