Algodoo

You can press 4, and 6 to control the position of the forklift truck, and then press "Home, End 'control forklift blue color bar, press" W, S "control purple bar, according to the" 8, 2 "can control the lever of black color, finally according to the" 1, 3 "can control a shovel. (the Numbers are small in the area of a keyboard)