Korea Forgotten Conflict [cheats] You can use these cheats when you are in "Help menu" (F1):

Infinite ammo - CTRL + M
Invisibility - CTRL + X
Immortality - CTRL + I
End of the mission - CTRL + H

Type this cheat when you are in the menu where you can choose the mission:

Access to all levels - HOSSANA

-from Cenega