To play an all-new mission, which is an extra mission after the main quest is completed, beat the game and view the endingcredits thereafter.
开始一个全新的任务，主任务完成并在通关并且显示完字幕之后将有一个额外任务。
Unlockable: New Mission 解锁:新任务 To play an all-new mission, which is an extra mission after the main quest is completed, beat the game and view the endingcredits thereafter.