鼠标键移动，别让炮弹打到你。 Move the mouse button, do not let the shell hit you. 开局一个炮弹，15秒两个炮弹，30秒三个炮弹，50秒四个炮弹。 It starts with a projectile, two shells in 15 seconds, three shells in 30 seconds, and four shells in 50 seconds.
点个赞呗！ A little bit of praise!
