Use your hand to control the UFO to avoid aerolite collision. Sometimes it takes a long time to initialize the webcam.

Use the mouse to drag the plane. When the webcam is initialized and the background image is changed, the plane can be controlled by hand.

Use the mouse or hand to cut fruit. In start screen,first cut sandia to start play,if game over then move mouse to restart. If knife is show,then you can use hand to control. Open palm to move knife,make a fist to move cut. Webcam initial need spend some time,may soon,may need about 5 minute.

Finger-guess game,rock、paper、scissors.The speed of computer punching will become faster and faster, and the player will use his hand and brain, which is very exciting.