你有想过1秒究竟有多长么?
按住发射键，等待1秒钟，放开，子弹发射！！
挑战自己，来获得高分和高连击吧！
欢迎加入官方QQ群： 569920684 讨论高分技巧，分享你的高分记录
How long have you thought about one second?
Hold the launch button, wait 1 seconds, let go of the bullet!!
Challenge yourself to get good grades and high combo!
Welcome to join the official QQ group: 569920684 discuss high score skills, share your high score record