双击绿旗 duble clicke the green flag 左右键旋转箭头（范围：0°-90°），上下键或调整力度 （范围：5-15）点击发射 left and right arrow keys to turn the arrow (range: 0°-90°) (方向=angle) up and down arrow keys or scroll to shoot harder/softer (range: 5-15) click to shoot
from a book -------------------------------updates------------------------------- 4.5.2020 relesed simplifined code 4.6.2020 added some more sound effects, fixed bug (you can't change the speed of monkey in the air now), changed backdrop 5.27.2020 changed control 6.12.2020 fixed the bug (it doesn't count your launches) 7.8.2020 fixed bug (the launch counter doesn't work)
