When an opera called for warriors, they would come flying into view above the heads of the audience, suspended on ropes, and in big fight scenes the stage would go dark, leaving nothing visible except for the light of flashing swords in mid air.
機關佈景一次要裝六、七台囉哩（小貨車），武俠片裡大俠們用繩子吊起來，從觀眾席上飛入舞台；纏鬥激烈時，燈光一暗，寶劍飛出在空中對打，電光火花四射。