I can only see a blue gradient bar across the screen. :/
This game generates an explorable 3D landscape using your webcam.
Play in a well lit room. Move the mouse to look around. Click to walk (or use the WASD or arrow keys if you prefer). Press enter to pause the webcam. Press alt-enter to enter fullscreen mode.
A recent version of Chrome or Firefox is recommended.
NOTE: If you're using Chrome, you will need to add "https://" to the front of the URL for it to work. This is due to recently introduced security restrictions in Chrome.