Unlock all five endings with a pilot by completing all fifty-two missions and save the game. Then, return to the title screen and load the completed game save file. The "New File" option will change to an "S-File" option. Choose that option for a mission simulator that allows any mission to be played with any airplane and difficulty setting.

Successfully complete the game on the easy difficulty setting.

Successfully complete the game on the hard difficulty setting to view the original Japanese introduction sequence.