想起来了，用简单或者中等难度模式通关后，二周目会变成重型坦克守门。直接用困难模式通关无法进入二周目。
New Game
This selection launches you into a new campaign game, beginning with the first of six campaigns. 【Your success will put an end to the Network-controlled nightmare that threatens the near future.】
New Game
This selection launches you into a new campaign game, beginning with the first of six campaigns. 【Your success will put an end to the Network-controlled nightmare that threatens the near future.】
