Conflict Zone $10,000
Pause the game and press X, Left, Right, Up, Left. If you entered the code correctly, a message will appear at the bottom of the screen.
100 population
Pause the game and press X, Right(2), Left, Up. If you entered the code correctly, a message will appear at the bottom of the screen.
The image featured at the top of this post is ©The Legend of Heroes: Trails of Cold Steel III key art / Original