Selecting camera...
Use your browser's camera permission interface. If you don't see a popup, there might be an icon on your address bar.
Guessing a color...
Click on your desired target color in the video display to the left.
Guessing a color...
Click on your desired target color in the video display to the left.
Selecting a gamepad...
Press a button on the gamepad you want to select.
Selecting a key...
Press the keyboard key you want to select.
Selecting a gamepad button...
Press the gamepad button you want to select.