Alternate Mission Briefing
At the armoury screen before launching missions 1, 3, 6, 8, 9, or 14, press L(2), R(2), click Left Analog-stick, click Right Analog-stick.
Alternate Front-end Music
At the front-end, click Left Analog-stick(2), click Right Analog-stick(2), press L, R.
Cheat Mode
At the mission selection screen, click Left Analog-stick, press Black, R, click Right Analog-stick, White, L to unlock everything.
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