Crimson Sea Cheats

Crimson Sea Easy Mode
If you fail a mission more than three or four times, a new Easy Mode will be unlocked for you. This is also called G-Squad Mode.

Crimson Sea Unlock EX Mode
To unlock EX Mode, beat the game once.

Crimson Sea Inheritance
Clear the game to unlock a standard Koei option that allows you to play a new game but with all the money from your last game.