RULES AND FEATURES
The funny thing is that some people, when they watch TV, do not notice anything around them at all! Even monsters...
Flash player plugin is not supported still Feb.21.
You can play the game KNOCK online 24 hours a day for free. It is no need to download and install it on your computer, and it is also not required you to be the registered user. Just ckick and enjoy. See also a set of related games below on that you might be interested to look.